Anthracene derivatives, preparation method thereof and organic light emitting diode using the same
专利汇可以提供Anthracene derivatives, preparation method thereof and organic light emitting diode using the same专利检索，专利查询，专利分析的服务。并且The present invention provides a novel anthracene derivative, a method for preparing the same, and an organic electronic device using the same. The anthracene derivative according to the invention can function alone as a light emitting host, in particular, as a blue host in an organic electronic device. Further, the anthracene derivative according to the invention can also function as a hole injecting or hole transporting material, an electron injecting or electron transporting material, or a light emitting material in an organic electronic device including a light emitting device. Therefore, the organic electronic device according to the present invention shows excellent characteristics in efficiency, drive voltage and stability.，下面是Anthracene derivatives, preparation method thereof and organic light emitting diode using the same专利的具体信息内容。
The invention claimed is:
This application claims the benefit of International Application Number PCT/KR/2007/000442 filed on Jan. 25, 2007 Korean Application No. 10-2006-0009154 filed on Jan. 27, 2006, both of which are hereby incorporated by reference as if fully set forth herein.
The present invention relates to novel anthracene derivatives, preparation method thereof, and an organic electronic device using the same. This application claims priority benefits from Korean Patent Application No. 10-2006-0009154, filed on Jan. 27, 2006, the entire content of which is fully incorporated herein by reference.
The term “organic electronic device” refers to a device requiring charge exchange between an electrode using holes and/or electrons and an organic material. The organic electronic device can be largely classified into two types according to its operational principle as follows: one type is an electronic device having a configuration in which an exciton is formed in an organic material layer by photons flown from an external light source into the device and the exciton is separated into an electron and a hole, the electron and the hole formed are transported to a different electrode, respectively and used as a current source (voltage source), and the other type is an electronic device having a configuration in which a hole and/or electron are/is injected into an organic material semiconductor forming an interface with an electrode by applying a voltage or current to two or more electrodes to allow the device to operate by means of the injected electron and hole.
Examples of the organic electronic device include an organic light emitting device, an organic solar cell, an organic photoconductor (OPC) drum and an organic transistor, all of which require a hole injecting or hole transporting material, an electron injecting or electron transporting material, or a light emitting material for driving the device. Hereinafter, the organic light emitting device will be mainly and specifically described, but in the above-mentioned organic electronic devices, the hole injecting or hole transporting material, the electron injecting or electron transporting material, or the light emitting material injection functions according to a similar principle.
In general, the term “organic light emitting phenomenon” refers to a phenomenon in which electric energy is converted to light energy by means of an organic material. The organic light emitting device using the organic light emitting phenomenon has a structure usually comprising an anode, a cathode and organic material layers interposed therebetween. Herein, the organic material layer may be mostly formed in a multilayer structure comprising layers of different materials, for example, the hole injecting layer, the hole transporting layer, the light emitting layer, the electron transporting layer, the electron injecting layer and the like, in order to improve efficiency and stability of the organic light emitting device. In the organic light emitting device having such a structure, when a voltage is applied between two electrodes, holes from the anode and electrons from a cathode are injected into the organic material layer, the holes and the electrons injected are combined together to form excitons. Further, when the excitons drop to a ground state, lights are emitted. Such the organic light emitting device is known to have characteristics such as self-luminescence, high brightness, high efficiency, low drive voltage, wide viewing angle, high contrast and high-speed response.
The materials used for the organic material layer of the organic light emitting device can be classified into a light emitting material and a charge transporting material, for example, a hole injecting material, a hole transporting material, an electron transporting material and an electron injecting material, according to their functions. The light emitting material can be divided into a high molecular weight type and a low molecular weight type according to their molecular weight, and divided into a fluorescent material from singlet excited states and a phosphorescent material from triplet excited states according to their light emitting mechanism. Further, the light emitting material can be divided into a blue, green or red light emitting material and a yellow or orange light emitting material required for giving more natural color, according to a light emitting color.
On the other hand, an efficiency of a device is lowered owing to maximum luminescence wavelength moved to a longer wavelength due to the interaction between the molecules, the deterioration of color purity and the reduction in light emitting efficiency when only one material is used for the light emitting material, and therefore a host/dopant system can be used as the light emitting material for the purpose of enhancing the color purity and the light emitting efficiency through energy transfer. It is based on the principle that if a small amount of a dopant having a smaller energy band gap than a host which forms a light emitting layer, excitons which are generated in the light emitting layer are transported to the dopant, thus emitting a light having a high efficiency. Here, since the wavelength of the host is moved according to the wavelength of the dopant, a light having a desired wavelength can be obtained according the kind of the dopant.
In order to allow the organic light emitting device to fully exhibit the above-mentioned excellent characteristics, a material constituting the organic material layer in the device, for example, a hole injecting material, a hole transporting material, a light emitting material, an electron transporting material and an electron injecting material should be essentially composed of a stable and efficient material. However, the development of a stable and efficient organic material layer material for the organic light emitting device has not yet been fully realized. Accordingly, the development of new materials is continuously desired. The development of such a material is equally required to the above-mentioned other organic electronic devices.
It is an object of the present invention to provide a novel anthracene derivative.
It is another object of the present invention to provide a method for preparing the anthracene derivative.
It is still another object of the present invention to provide an organic electronic device using the anthracene derivative.
The present inventors have synthesized a novel anthracene derivative, and then have found that the compound can exhibit effects of increased efficiency, lower operating voltage and higher stability, by using as a light emitting host of a light emitting layer in an organic electronic device, thus completing the present invention.
The anthracene derivative according to the present invention can function alone as a light emitting host, in particular, as a blue host in an organic electronic device. Further, the anthracene derivative according to the present invention can serve as hole injecting, hole transporting, electron injecting, electron transporting, or a light emitting materials in an organic electronic device including an organic light emitting device, and the device according to the present invention exhibits excellent characteristics in efficiency, operating voltage, and stability.
The present invention provides an anthracene derivative represented by the following formula 1:
wherein A and B may be the same as or different from each other, and are each a C5 to C20 aryl group which is substituted or unsubstituted with at least one group selected from the group consisting of halogen, CN, NO2, a C1 to C20 alkyl group, a C1 to C20 alkoxy group, a C1 to C20 alkylamine group, a C1 to C20 alkylthio group, a C2 to C20 alkenyl group, a C2 to C20 alkynyl group, a C3 to C20 cycloalkyl group, a C5 to C20 aryl group, a substituted or unsubstituted silane group and C5 to C20 heterocyclic group having O, N or S; a C5 to C20 heterocyclic group having O, N or S which is substituted or unsubstituted with at least one group selected from the group consisting of halogen, CN, NO2, a C1 to C20 alkyl group, a C1 to C20 alkoxy group, a C1 to C20 alkylamine group, a C1 to C20 alkylthio group, a C2 to C20 alkenyl group, a C2 to C20 alkynyl group, a C3 to C20 cycloalkyl group, a C5 to C20 aryl group, a substituted or unsubstituted silane group and C5 to C20 heterocyclic group having O, N or S; or a C5 to C20 arylamine group which is substituted or unsubstituted with at least one group selected from the group consisting of an alkyl group and alkylsilyl group, and
Q is a group selected from the group consisting of the following structural formulae:
In the formula 1, A and B may be preferably the same as or different from each other, and are each a C5 to C20 aryl group which is substituted or unsubstituted with at least one group selected from the group consisting of F, Cl, Br, CN, NO2, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a t-butyl group, a pentyl group, a hexyl group, a heptyl group, a methoxy group, an ethoxy group, a methylthio group, an ethylthio group, a stilbenyl group, a styrenyl group, a cyclopentyl group, a cyclohexyl group, a phenyl group, a naphthyl group, an anthracenyl group, a thiophene group, a puran group, a pyran group, a pyrrole group, an imidazole group, a pyrazole group, a thiazole group, a pyridine group, a pyrazine group, a pyrimidine group, a silole group, a pyridazine group; or
a C5 to C20 heterocyclic group having O, N or S which is substituted or unsubstituted with at least one group selected from the group consisting of F, Cl, Br, CN, NO2, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a t-butyl group, a pentyl group, a hexyl group, a heptyl group, a methoxy group, an ethoxy group, a methylthio group, an ethylthio group, a stilbenyl group, a styrenyl group, a cyclopentyl group, a cyclohexyl group, a phenyl group, a naphthyl group, an anthracenyl group, a thiophene group, a puran group, a pyran group, a pyrrole group, an imidazole group, a pyrazole group, a thiazole group, a pyridine group, a pyrazine group, a pyrimidine group, a silole group, a pyridazine group.
More preferably, in the formula 1, A and B may be the same as or different from each other, and are each a group selected from the group consisting of a phenyl group, a naphthyl group, an anthracenyl group, a pyrenyl group, a perylenyl group, a pyridyl group, a bipyridyl group, a carbazole group, a thiophenyl group, a quinolinyl group and an isoquinolinyl group, and
Q is a group selected from the group consisting of the following structural formulae:
Specific examples of the compound of the formula 1 according to the present invention are shown in the following table 1, but not limited thereto.
Further, the present invention provides a method for preparing the anthracene derivative represented by the formula 1.
The anthracene derivative according to the present invention can be prepared by subjecting a dibromoaryl compound and an anthracene boronic acid to a Suzuki coupling reaction in the presence of a Pd catalyst.
Further, the present invention provides an organic electronic device using the compound of the formula 1.
The organic electronic device of the present invention can be prepared by usual methods and materials for preparing an organic electronic device, except that the above-described compounds are used to form at least one organic material layer. Hereinbelow, the organic light emitting device will be exemplified.
The above-described compounds can function alone as a light emitting material, as well as a light emitting host with an appropriate light emitting dopant or a light emitting dopant with an appropriate light emitting host in an organic electronic device.
In another embodiment of the present invention, the organic light emitting device may be the structure that comprises a first electrode, a second electrode and organic material layers interposed therebetween, and can be prepared by usual methods and materials for preparing an organic light emitting device, except that the above-described compound according to the present invention is used to form at least one of the organic material layers in an organic light emitting device. The structure of the organic light emitting device of the present invention can be that as shown
For example, the organic light emitting device according to the present invention can be prepared by depositing a metal, a metal oxide having conductivity or an alloy thereof on a substrate using a PVD (physical vapor deposition) process such as sputtering and e-beam evaporation to form an anode; forming an organic material layer comprising a hole injecting layer, a hole transporting layer, a light emitting layer and an electron transporting layer on the anode; and depositing a material, which can be used as a cathode, thereon. Alternatively, an organic light emitting device can be prepared by sequentially depositing a cathode material, an organic material layer, and an anode material on a substrate, thus preparing the above-described organic light emitting device having a reverse structure.
The organic material layer may be multi layer structure including a hole injecting layer a hole transporting layer, a light emitting layer and electron transporting layer, but is not limited thereto, it may be a single layer structure. Further, the organic material layer can be prepared to have a fewer number of layers, using a variety of polymeric materials, by means of a solvent process rather than a deposit process, such as spin coating, dip coating, doctor blading, screen printing, ink jet printing, and heat transfer processes.
The anode material is preferably a material having a large work function to facilitate hole injection usually to the organic material layers. Specific examples of the anode material which can be used in the present invention include metals such as vanadium, chromium, copper, zinc and gold, or an alloy thereof; metal oxides such as zinc oxide, indium oxide, indium-tin oxide (ITO), and indium zinc oxide (IZO); a combination of a metal and an oxide, such as ZnO:Al and SnO2:Sb; conductive polymers such as poly(3-methylthiophene), poly[3,4-(ethylene-1,2-dioxy)thiophene] (PEDT), polypyrrole and polyaniline, but are not limited thereto.
The cathode material is preferably a material having a small work function to facilitate electron injection usually to an organic material layer. Specific examples of the cathode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead, and an alloy thereof; and multilayered materials such as LiF/Al and LiO2/Al, but are not limited thereto.
The hole injecting material is a material facilitating hole injection from an anode at low voltage. The HOMO (highest occupied molecular orbital) of the hole injecting material is preferably located between the work function of the anode materials and the HOMO level of its neighboring organic material layer. Specific examples of the hole injecting material include organic materials of metal porphyrin, oligothiophene and arylamine series, organic materials of hexanitrile hexaazatriphenylene and quinacridone series, organic materials of perylene series, and conductive polymers of anthraquinone, polyaniline, and polythiophene series, but are not limited thereto.
The hole transporting material is a material having high hole mobility, which can transfer holes from the anode or the hole injecting layer toward the light emitting layer. Specific examples thereof include organic materials of arylamine series, conductive polymers and block copolymers having both of the conjugated portions and the non-conjugated portions, but are not limited thereto.
The light emitting material are a material capable of emitting visible light by accepting and recombining holes from the hole transporting layer and electrons from the electron transporting layer, preferably a material having high quantum efficiency for fluorescence and phosphorescence. Specific examples thereof include 8-hydroxyquinoline aluminum complex (Alq3); compounds of carbazole series; dimerized styryl compounds; BAlq; 10-hydroxybenzoquinoline-metal compounds; compounds of benzoxazole, benzthiazole and benzimidazole series; polymers of poly(p-phenylenevinylene) (PPV) series; spiro compounds; and polyfluorene and rubrene compounds, but are not limited thereto.
The electron transporting material is suitably a material having high electron mobility, which can easily receive electrons from the cathode and then transfer them to the light emitting layer. Specific examples thereof include an Alq complex of an 8-hydroxyquinoline aluminum complex; complexes including Alq3; organic radical compounds; and hydroxyflavone-metal complexes, but are not limited thereto.
The organic light emitting device according to the present invention may be of a front-sided, back-sided or double-sided light emission according to the materials used.
The compound according to the invention can also function in an organic electronic device including an organic solar cell, an organic photoconductor and an organic transistor, according to a principle similar to that applied to the organic light emitting device.
[Mode for Invention]
Hereinafter, preferable Examples are provided for the purpose of making the present invention more understandable. As such, Examples are provided for illustrating the Examples, but the scope of the invention is not limited thereto.
1-A. Preparation of Compound 1a
Under cooling, 1,5-diaminonaphthalene (12 g, 75.9 mmol) was dissolved in H2O (300 mL) and conc. sulfuric acid (20 mL). To the solution, NaNO2 dissolved in H2O (300 mL) was added dropwise slowly and stirred at 0° C. for 45 minutes. After filtering the mixture, CuBr2 (30 g, 52.3 mmol), HBr (48%, 450 mL) and H2O (450 mL) were added to the filtrate. The solution was stirred at 0° C. for 1 hour and at room temperature for 2 hours and then stirred again at 70° C. for 30 minutes. The organic layer was separated with benzene, dried over sodium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare compound 1a (5.9 g, 27%). MS [M]=286
1-B. Preparation of Compound 1
Under N2 atmosphere, a compound 1a, 1,5-dibromonaphthalene (1 g, 3.5 mmol), 10-phenylanthracene-9-boronic acid (2.62 g, 8.75 mmol), and Pd(PPh3)4 (0.3 g, 0.3 mmol) were added to a 2 M aqueous solution of potassium carbonate (70 mL) and THF (150 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 1 (1.7 g, 77%). MS [M]=632
Under N2 atmosphere, 1,5-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol) and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 2 (2.5 g, 66%). MS [M+H]=733
Under N2 atmosphere, 1,5-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(1-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 3 (2.3 g, 63%). MS [M+H]=733
4-A. Preparation of Compound 4a
Under N2 atmosphere, 1,4-dibromophenyl (40 g, 0.17 mol), phenyl boronic acid (20.6 g, 0.17 mol), and Pd(PPh3)4 (9.6 g, 8.4 mmol were added to a 2 M aqueous solution of potassium carbonate (500 mL) and THF (500 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 4a (18.4 g, 47%). MS [M]=233
4-B. Preparation of Compound 4b
Under N2 atmosphere, to a compound 4a (18 g, 34.4 mmol), dehydrated ether (180 mL) and dehydrated toluene (180 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (24 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethyl ester (36 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (140 mL) was added at 10° C. or lower and toluene (40 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from EtOH to prepare a compound 4b (7.6 g).
4-C. Preparation of Compound 4c
Under N2 atmosphere, 9-bromoanthracene (8.2 g, 31.9 mmol), the compound 4b (7.6 g, 38.6 mmol), and Pd(PPh3)4 (0.7 g, 0.6 mmol) were added to a 2 M aqueous solution of potassium carbonate (300 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was recrystallized from THF and EtOH to prepare a compound 4c (8.5 g, 81%). MS [M]=330
4-D. Preparation of Compound 4d
Under N2 atmosphere, a compound 4c (8.0 g, 24.2 mmol) was dissolved in chloroform (150 mL). Acetic acid (150 mL) was added thereto, and Br2 (1.3 mL, 25.4 mmol) was added dropwise at 0° C. The temperature of the mixture was raised to ambient temperature, and stirred for 5 hours. After completing the reaction, the resultant was concentrated, and recrystallized from EtOH to prepare a compound 4d (7 g, 71%). MS [M]+=408
4-E. Preparation of Compound 4e
Under N2 atmosphere, to a compound 4d (7 g, 17.1 mmol), dehydrated ether (80 mL) and dehydrated toluene (80 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (9 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid triisoester (12 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (70 mL) was added at 10° C. or lower and toluene (30 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from hexane to prepare a yellow solid. To the solid, conc. hydrochloric acid (7 mL) and tetrabutylammonium bromide (0.04 g, 0.1 mmol) were added, and dissolved in THF (100 mL). The mixture was subjected to reaction at room temperature for 12 hours. After completing the reaction, the mixture was solidified in H2O and filtered to prepare a compound 4e (3.2 g, 50%).
4-F. Preparation of Compound 4
Under N2 atmosphere, 1,5-dibromonaphthalene (1 g, 3.6 mmol), the compound 4e (3.0 g, 8.02 mmol) and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 4 (2.0 g, 70%). MS [M]=784
5-A. Preparation of Compound 5a
Under N2 atmosphere, 1,4-dibromophenyl (40 g, 0.17 mol), 2-naphthyl boronic acid (29 g, 0.17 mol), and Pd(PPh3)4 (5.9 g, 5.1 mmol) were added to a 2 M aqueous solution of potassium carbonate (300 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over sodium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 5a (22.6 g, 47%). MS [M]=283
5-B. Preparation of Compound 5b
Under N2 atmosphere, to a compound 5a (20 g, 0.07 mol), dehydrated ether (100 mL) and dehydrated toluene (200 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (24 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethylester (36 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (35 mL) was added at 10° C. or lower and toluene (10 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from EtOH to prepare a compound 5b (8.77 g).
5-C. Preparation of Compound 5c
Under N2 atmosphere, 9-bromoanthracene (7.34 g, 28.5 mmol), the compound 5b (8.5 g, 34.3 mmol), and Pd(PPh3)4 (1.0 g, 0.86 mmol) were added to a 2 M aqueous solution of potassium carbonate (200 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over sodium sulfate, and distilled under reduced pressure. The residue was recrystallized from THF and EtOH to prepare a compound 5c (9.2 g, 85%). MS [M]=380
5-D. Preparation of Compound 5d
Under N2 atmosphere, a compound 5c (9 g, 23.6 mmol) was dissolved in chloroform (150 mL). Acetic acid (150 mL) was added thereto, and Br2 (1.2 mL, 24.8 mmol) was added dropwise at 0° C. The temperature of the mixture was raised to ambient temperature, and stirred for 5 hours. After completing the reaction, the resultant was concentrated, and recrystallized from EtOH to prepare a compound 5d (7.8 g, 72%). MS [M]=459
5-E. Preparation of Compound 5e
Under N2 atmosphere, to a compound 5d (7 g, 15.2 mmol)), dehydrated ether (50 mL) and dehydrated toluene (80 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (9 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethylester (12 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. 2 N hydrochloric acid (70 mL) was added at 10° C. or lower and toluene (20 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from hexane to prepare a yellow solid. To the solid, conc. hydrochloric acid (7 mL) and tetrabutylammonium bromide (0.04 g, 0.1 mmol) were added, and dissolved in THF (80 mL). The mixture was subjected to reaction at room temperature for 12 hours. After completing the reaction, the mixture was solidified in H2O and filtered to prepare a compound 5e (3.3 g, 51%).
5-F. Preparation of Compound 6
Under N2 atmosphere, 1,5-dibromonaphthalene (0.9 g, 3.2 mmol), the compound 5e (3.0 g, 7.1 mmol), and Pd(PPh3)4 (0.17 g, 0.15 mmol) were added to a 2 M aqueous solution of potassium carbonate (50 mL) and anisole (150 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the mixture and filtered to obtain a solid. The resultant was recrystallized from THF and EtOH to prepare a compound 6 (2.0 g, 72%). MS [M]=884.
6-A. Preparation of Compound 6a
Under N2 atmosphere, 2,6-dibromonaphthalene (40 g, 0.14 mol), phenyl boronic acid (17 g, 0.14 mol), and Pd(PPh3)4 (4.9 g, 4.2 mmol) were added to a 2 M aqueous solution of potassium carbonate (50 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over sodium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 6a (22 g, 55%). MS [M]=283
6-B. Preparation of Compound 6b
Under N2 atmosphere, to a compound 6a (20 g, 70.6 mmol), dehydrated ether (70 mL) and dehydrated toluene (200 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (24 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethylester (18 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (500 mL) was added, and stirred for 24 hours. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from EtOH to prepare a compound 6b (8.9 g, 51%).
6-C. Preparation of Compound 6c
Under N2 atmosphere, 9-bromoanthracene (7.34 g, 28.5 mmol), the compound 6b (8.5 g, 34.3 mmol), and Pd(PPh3)4 (1.0 g, 0.86 mmol) were added to a 2 M aqueous solution of potassium carbonate (200 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was recrystallized from THF and EtOH to prepare a compound 6c (9.2 g, 85%). MS [M]=380
6-D. Preparation of Compound 6d
Under N2 atmosphere, a compound 6c (9 g, 23.6 mmol) was dissolved in chloroform (150 mL). Acetic acid (150 mL) was added thereto, and Br2 (1.2 mL, 24.8 mmol) was added dropwise at 0° C. The temperature of the mixture was raised to ambient temperature, and stirred for 5 hours. After completing the reaction, the resultant was concentrated, and recrystallized from EtOH to prepare a compound 6d (7.8 g, 72%). MS [M]+=459
6-E. Preparation of Compound 6e
Under N2 atmosphere, to a compound 6d (7 g, 15.2 mmol), dehydrated ether (50 mL) and dehydrated toluene (150 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (9 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid triisoester (12 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (70 mL) was added, and toluene (20 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from hexane to prepare a yellow solid. To the solid, conc. hydrochloric acid (7 mL) and tetrabutylammonium bromide (0.04 g, 0.1 mmol) were added, and dissolved in THF (80 mL). The mixture was subjected to reaction at room temperature for 12 hours. After completing the reaction, the mixture was solidified in H2O and filtered to prepare a compound 6e (3.3 g, 51%).
6-F. Preparation of Compound 9
Under N2 atmosphere, 1,5-dibromonaphthalene (0.9 g, 3.2 mmol), the compound 6e (3.0 g, 7.1 mmol), and Pd(PPh3)4 (0.17 g, 0.15 mmol) were added to a 2 M aqueous solution of potassium carbonate (50 mL) and anisole (150 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 9 (2.0 g, 72%). MS [M]=884
Under N2 atmosphere, 2,6-dibromonaphthalene (1 g, 3.5 mmol), 10-phenylanthracene-9-boronic acid (2.62 g, 8.75 mmol), and Pd(PPh3)4 (0.3 g, 0.3 mmol) were added to a 2 M aqueous solution of potassium carbonate (70 mL) and THF (150 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 17 (1.7 g, 77%). MS [M]=632.
Under N2 atmosphere, 2,6-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(2-naphthyl) anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 18 (2.5 g, 66%). MS [M+H]=733.
Under N2 atmosphere, 2,6-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(1-naphthyl) anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 19 (2.9 g, 78%). MS [M+H]=733
Under N2 atmosphere, 2,6-dibromonaphthalene (1 g, 3.5 mmol), the compound 5e (3.27 g, 7.69 mmol) prepared in 5-E of Example 5, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 22 (2.3 g, 75%). MS [M]=884
11-A. Preparation of Compound 11a
Under N2 atmosphere, 2,6-dibromonaphthalene (20 g, 70 mmol), phenyl boronic acid (8.52 g, 70 mmol), and Pd(PPh3)4 (4.0 g, 3.5 mmol) were added to a 2 M aqueous solution of potassium carbonate (200 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 11a (9.0 g, 45%). MS [M]=283
11-B. Preparation of Compound 11b
Under N2 atmosphere, to a compound 11a (9.0 g, 31.7 mmol) prepared in 11-A, dehydrated ether (100 mL) and dehydrated toluene (100 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (12 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethyl ester (9 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (200 mL) was added at 10° C. or lower and stirred for 24 hours. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from EtOH to prepare a compound 11b (3.9 g, 50%).
11-C. Preparation of Compound 11c
Under N2 atmosphere, 9-bromoanthracene (3 g, 11.7 mmol), the compound 11b (3.5 g, 14.1 mmol) prepared in 11-B, and Pd(PPh3)4 (0.68 g, 0.58 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and THF (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was recrystallized from THF and EtOH to prepare a compound 11c (4.0 g, 90%). MS [M]=380
11-D. Preparation of Compound 11d
Under N2 atmosphere, a compound 11c (4, 10.5 mmol) prepared in 11-C was dissolved in chloroform (60 mL). Acetic acid (80 mL) was added thereto, and Br2 (0.56 mL, 11.0 mmol) was added dropwise at 0° C. The temperature of the mixture was raised to ambient temperature, and stirred for 5 hours. After completing the reaction, the resultant was concentrated, and recrystallized from EtOH to prepare a compound 11d (4.2 g, 86%). MS [M]+=459
11-E. Preparation of Compound 11e
Under N2 atmosphere, to compound 11d (4 g, 8.7 mmol) prepared in 11-D, dehydrated ether (80 mL) and dehydrated toluene (40 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (6 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethylester (9 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (35 mL) was added at 10° C. or lower and toluene (10 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from hexane to prepare a yellow solid. To the solid, conc. hydrochloric acid (4 mL) and tetrabutylammonium bromide (0.04 g, 0.16 mmol) were added, and dissolved in THF (40 mL). The mixture was subjected to reaction at room temperature for 12 hours. After completing the reaction, the mixture was solidified in H2O and filtered to prepare a compound 11e (1.8 g, 50%).
11-F. Preparation of Compound 24
Under N2 atmosphere, 2,6-dibromonaphthalene (1 g, 3.5 mmol), the compound 11e (3.27 g, 7.69 mmol) prepared in 11-E, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring, for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 24 (2.3 g, 75%). MS [M]=884
Under N2 atmosphere, 2,6-dibromonaphthalene (1 g, 3.5 mmol), the compound 6e (3.27 g, 7.69 mmol) prepared in 6-E of Example 6, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, and filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 25 (2.45 g, 83%). MS [M]=884
13-A. Preparation of Compound 13a
Under N2 atmosphere, 1,3-dibromophenyl (10 g, 42.2 mmol), 2-naphthyl boronic acid (5.16 g, 42.2 mmol), and Pd(PPh3)4 (2.4 g, 2.1 mmol) were added to a 2 M aqueous solution of potassium carbonate (50 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The resultant was purified by column chromatography to prepare a compound 13a (4.6 g, 47%). MS [M]=233
13-B. Preparation of Compound 13b
Under N2 atmosphere, to a compound 13a (4 g, 14.1 mmol) prepared in 13-A, dehydrated ether (80 mL) and dehydrated toluene (80 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (6 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid triisoester (9 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (35 mL) was added at 10° C. or lower and toluene (10 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from EtOH to prepare a compound 13b (1.75 g, 50%).
13-C. Preparation of Compound 13c
Under N2 atmosphere, 9-bromoanthracene (5 g, 19.4 mmol), the compound 5b (4.6 g, 23.3 mmol), Pd(PPh3)4 (1.1 g, 0.97 mmol) were added to a 2 M aqueous solution of potassium carbonate (30 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The resultant was recrystallized from THF and EtOH to prepare a compound 13c (5.4 g, 84%). MS [M]=330
13-D. Preparation of Compound 13d
Under N2 atmosphere, a compound 13c (5 g, 15.1 mmol) was dissolved in chloroform (100 mL). Acetic acid (100 mL) was added thereto, and Br2 (0.8 mL, 15.9 mmol) was added dropwise at 0° C. The temperature of the mixture was raised to ambient temperature, and stirred for 5 hours. After completing the reaction, the resultant was concentrated, and recrystallized from EtOH to prepare a compound 13d (4.4 g, 71%). MS [M]+=408
13-E. Preparation of Compound 13e
Under N2 atmosphere, to a compound 13d (4 g, 9.8 mmol), dehydrated ether (40 mL) and dehydrated toluene (40 mL) were added, and cooled to −64° C. in ice bath. A 2.5 M butyl lithium/hexane solution (6 mL) was added dropwise thereto for 30 minutes, and subjected to reaction at −64° C. for 2 hours. Boronic acid trimethylester (9 mL) was added dropwise thereto for 15 minutes, and then stirred at room temperature for 12 hours. After ice cooling, 2 N hydrochloric acid (35 mL) was added at 10° C. or lower and toluene (10 mL) was added. The mixture was separated, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was recrystallized from hexane to prepare a yellow solid. To the solid, conc. hydrochloric acid (4 mL) and tetrabutylammonium bromide (0.02 g, 0.1 mmol) were added, and dissolved in THF (40 mL). The mixture was subjected to reaction at room temperature for 12 hours. After completing the reaction, the mixture was solidified in H2O and filtered to prepare a compound 13e (1.8 g, 50%).
13-F. Preparation of Compound 30
Under N2 atmosphere, 2,6-dibromonaphthalene (1 g, 3.5 mmol), the compound 13e (2.88 g, 7.69 mmol), Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 30 (1.9 g, 70%). MS [M]=884
Under N2 atmosphere, 1,4-dibromonaphthalene (1 g, 3.5 mmol), 10-phenylanthracene-9-boronic acid (2.62 g, 8.75 mmol), Pd(PPh3)4 (0.3 g, 0.3 mmol) were added to a 2 M aqueous solution of potassium carbonate (70 mL) and THF (150 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 33 (1.7 g, 77%). MS [M]=632
Under N2 atmosphere, 1,4-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 34 (2.5 g, 66%). MS [M+H]=733
Under N2 atmosphere, 1,4-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(1-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 35(2.3 g, 63%). MS [M+H]=733
Under N2 atmosphere, 1,4-dibromonaphthalene (1 g, 3.5 mmol), the compound 5e (3.27 g, 7.69 mmol) prepared in 5-E of Example 5, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 38(2.3 g, 75%). MS [M]=884
Under N2 atmosphere, 1,4-dibromonaphthalene (1 g, 3.5 mmol), the compound 6e (3.27 g, 7.69 mmol) prepared in 6-E of Example 6, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 41 (2.45 g, 83%). MS [M]=884
Under N2 atmosphere, 1,4-dibromonaphthalene (1 g, 3.5 mmol), the compound 13e (2.88 g, 7.69 mmol) prepared in 13-E of Example 13, Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 46(1.9 g, 70%). MS [M]=884
20-A. Preparation of Compound 20a
To 1,6-dihydroxynaphthalene (1.2 g, 7.68 mmol), acetonitrile (50 mL), PBr3 (2.91 g, 10.8 mmol) was added, and heated under stirring for 48 hours. The mixture was cooled to normal temperature and then was added methanol (100 mL) to precipitate a solid. After the solid was filtered, washed with methanol sufficiently and dried to prepare a compound 20a 1,6-dibromonaphthalene (1.6 g, 74%). [M]=286
20-B. Preparation of Compound 50
Under N2 atmosphere, 1,6-dibromonaphthalene (1.5 g, 5.2 mmol), 10-(2-naphthyl) anthracene-9-boronic acid (4.0 g, 11.4 mmol), Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 50 (2.5 g, 66%). MS [M+H]=733
21-A. Preparation of Compound 21a
Under N2 atmosphere, 1,5-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (3.5 g, 17.5 mmol), Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 21a (4.6 g, 73%). MS [M]=362
21-B. Preparation of Compound 65
Under N2 atmosphere, a compound 21a (1 g, 2.8 mmol) prepared in 21-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 65 (1.5 g, 75%). MS [M]=708
Under N2 atmosphere, a compound 21a (1 g, 2.8 mmol) prepared in 21-A of Example 21, 10-(2-naphthyl)anthracene-9-boronic acid (2.1 g, 6.1 mmol), Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 66 (1.8 g, 78%). MS [M]=808
Under N2 atmosphere, a compound 21a (1 g, 2.8 mmol) prepared in 21-A of Example 21, a compound 5e (2.6 g, 6.1 mmol) prepared in 5-E of Example 5, and Pd(PPh3)4 (0.2 g, 0.18 mmol) were added to a 2 M aqueous solution of potassium carbonate (100 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 68 (2.0 g, 74%). MS [M]=960
24-A. Preparation of Compound 24a
Under N2 atmosphere, 2,6-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (3.5 g, 17.5 mmol), Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare compound 24a (4.7 g, 75%). MS [M]=362
24-B. Preparation of Compound 78
Under N2 atmosphere, a compound 24a (1 g, 2.8 mmol) prepared in 24-A, 10-(2-naphthyl)anthracene-9-boronic acid (2.1 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 78 (1.7 g, 75%). MS [M]=808
25-A. Preparation of Compound 25a
Under N2 atmosphere, 2,6-dibromonaphthalene (5 g, 17.5 mmol), 3-bromophenylboronic acid (3.5 g, 17.5 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare 25a (4.8 g, 75%). MS [M]=362
25-B. Preparation of Compound 81
Under N2 atmosphere, a compound 25a (1 g, 2.8 mmol) prepared in 25-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 81 (1.5 g, 75%). MS [M]=708
26-A. Preparation of Compound 26a
Under N2 atmosphere, 1,4-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (3.5 g, 17.5 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After, completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare compound 26a (4.8 g, 75%). MS [M]=362
26-B. Preparation of Compound 85
Under N2 atmosphere, a compound 26a (1 g, 2.8 mmol) prepared in 26-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 85 (1.5 g, 75%). MS [M]=708
Under N2 atmosphere, a compound 26a (1 g, 2.8 mmol) prepared in 26-A of Example 26, 10-(2-naphthyl)anthracene-9-boronic acid (2.1 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 86 (1.8 g, 78%). MS [M]=808
28-A. Preparation of Compound 28a
Under N2 atmosphere, 1,4-dibromonaphthalene (5 g, 17.5 mmol), 3-bromophenylboronic acid (3.5 g, 17.5 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare compound 28a (4.8 g, 75%). MS [M]=362
28-B. Preparation of Compound 89
Under N2 atmosphere, a compound 28a (1 g, 2.8 mmol) prepared in 28-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 89(1.5 g, 75%). MS [M]=708
Under N2 atmosphere, a compound 28a (1 g, 2.8 mmol) prepared in 28-A of Example 28, 10-(2-naphthyl)anthracene-9-boronic acid (2.1 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 90 (1.8 g, 78%). MS [M]=808
30-A. Preparation of Compound 30a
Under N2 atmosphere, 9,10-dibromoanthracene (5 g, 14.9 mmol) and p-tolylamine (2.9 g, 14.9 mmol) were dissolved in toluene (80 mL). NaOtBu (1.6 g, 16.4 mmol) was added thereto, and stirred for 10 minutes. To the mixture, Pd(dba)2 (0.17 g, 0.3 mmol) and tri-t-butylphosphine (0.06 g, 0.3 mmol) were added, and refluxed for 30 minutes with raising temperature. After washing with saline water, the organic layer was extracted from ethyl acetate. The moisture was removed over anhydrous magnesium sulfate. The solvent was removed under reduced pressure and the resultant was recrystallized from THF and EtOH to prepare a compound 30a (2.7 g, 40%). MS [M] 452
30-B. Preparation of Compound 102
Under N2 atmosphere, 2,6-dibromonaphthalene (5 g, 17.5 mmol) and magnesium (0.9 g) were added to THF (300 mL) to prepare a Grignard reagent. To the mixture, bis(triphenylphosphine)nickel chloride (1.4 g) was added. A compound 30a (17 g, 38.5 mmol) prepared in 30-A was dissolved in THF (120 mL) and then was added thereto. The mixture was stirred at 60° C. for 12 hours. The temperature was raised to ambient temperature. To the reaction solution, 3% of hydrochloric acid was added to precipitate. The precipitate was filtered, dissolved in THF and was purified by column chromatography to prepare a compound 102 (5.8 g, 38%). MS [M] 870
31-A. Preparation of Compound 31a
Under N2 atmosphere, 1,5-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (7.03 g, 35 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare compound 31a (3.8 g, 50%). MS [M+H]=438
31-B. Preparation of Compound 110
Under N2 atmosphere, a compound 31a (1.2 g, 2.8 mmol) prepared in 31-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 110 (1.5 g, 70%). MS [M+H]+=784
Under N2 atmosphere, a compound 31a (2.28 g, 5.2 mmol) prepared in 31-A of Example 31, 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 111 (2.5 g, 66%). MS [M+H]+=884
33-A. Preparation of Compound 33a
Under N2 atmosphere, 2,6-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (7.03 g, 35 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 33a (3.8 g, 50%). MS [M+H]+=438
33-B. Preparation of Compound 122
Under N2 atmosphere, a compound 33a (1.2 g, 2.8 mmol) prepared in 33-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 122 (1.5 g, 70%). MS [M+H]+=784
Under N2 atmosphere, a compound 33a (2.28 g, 5.2 mmol) prepared in 33-A of Example 33, 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 123 (2.5 g, 66%). MS [M+H]+=884
35-A. Preparation of Compound 35a
Under N2 atmosphere, 1,4-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (7.03 g, 35 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 35a (3.8 g, 50%). MS [M+H]+=438
35-B. Preparation of Compound 134
Under N2 atmosphere, a compound 35a (1.2 g, 2.8 mmol) prepared in 35-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 134 (1.5 g, 70%). MS [M+H]+=784
Under N2 atmosphere, a compound 35a (2.28 g, 5.2 mmol) prepared in 35-A of Example 35, 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 135 (2.5 g, 66%). MS [M+H]+=884
37-A. Preparation of Compound 37a
Under N2 atmosphere, 1,6-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (7.03 g, 35 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 37a (3.8 g, 50%). MS [M+H]+=438
37-B. Preparation of Compound 146
Under N2 atmosphere, a compound 37a (1.2 g, 2.8 mmol) prepared in 37-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), Pd(PPh3)4 (0.16 g, 0.14 mmol were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 146 (1.5 g, 70%). MS [M+H]+=784
Under N2 atmosphere, a compound 37a (2.28 g, 5.2 mmol) prepared in 37-A of Example 37, 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 147 (2.5 g, 66%). MS [M+H]+=884
39-A. Preparation of Compound 39a
Under N2 atmosphere, 1,3-dibromonaphthalene (5 g, 17.5 mmol), 4-bromophenylboronic acid (7.03 g, 35 mmol), and Pd(PPh3)4 (1.0 g, 0.88 mmol) were added to a 2 M aqueous solution of potassium carbonate (10 mL) and THF (200 mL). The mixture was refluxed under stirring for about 12 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 39a (3.8 g, 50%). MS [M+H]+=438
39-B. Preparation of Compound 158
Under N2 atmosphere, a compound 39a (1.2 g, 2.8 mmol) prepared in 39-A, 10-phenyl anthracene-9-boronic acid (3.8 g, 6.1 mmol), and Pd(PPh3)4 (0.16 g, 0.14 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 158 (1.5 g, 70%). MS [M+H]+=784
Under N2 atmosphere, a compound 39a (2.28 g, 5.2 mmol) prepared in 39-A of Example 39, 10-(2-naphthyl)anthracene-9-boronic acid (4.0 g, 11.4 mmol), and Pd(PPh3)4 (0.3 g, 0.26 mmol) were added to a 2 M aqueous solution of potassium carbonate (80 mL) and anisole (100 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, filtered to obtain a solid. The solid was recrystallized from THF and EtOH to prepare a compound 159 (2.5 g, 66%). MS [M+H]+=884
41-A. Preparation of Compound 41a
Under N2 atmosphere, a compound 5d (32 g, 70 mmol) prepared in 5-D of Example 5, 41d (18.9 g, 70 mmol), and Pd(PPh3)4 (4.0 g, 3.5 mmol) were added to a 2 M aqueous solution of potassium carbonate (200 mL) and THF (300 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 41a (29.3 g, 80%). MS [M]=522
41-B. Preparation of Compound 41b
Under N2 atmosphere, a compound 41a (26.1 g, 50 mmol) prepared in 41-A and Et3N (6.1 g, 60 mmol) were dissolved in MC (200 ml) and cooled to 0° C. Trifluoromethane sulfonic anhydride (16.9 g, 60 mmol) was slowly added thereto. The mixture was stirred at ambient temperature for 2 hours and washed with 1 N—HCl.
The organic layer was separated, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 41b (26.1 g, 80%). MS [M]=654
41-C. Preparation of Compound 41c
Under N2 atmosphere, a compound 41b (6.5 g, 10 mmol) prepared in 41-B, pinacol diboron (3.0 g, 12 mmol), and KOAc (2.94 g, 30 mmol), 1,4-dioxane (100 ml) were mixed together and then heated at 50° C. PdCl2(dppf) (4.0 g, 3.5 mmol) was added thereto and refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. Water (100 ml) and MC (100 ml) was added thereto. The organic layer was separated, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 41c (5.7 g, 90%). MS [M]=632
41-D. Preparation of Compound 170
Under N2 atmosphere, 41c (3.2 g, 5 mmol), 10-(2-naphthyl)-9-bromo anthracene (2.3 g, 6 mmol), and Pd(PPh3)4 (0.17 g, 0.15 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and THF (50 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 170 (2.8 g, 70%). MS [M]=809
Under N2 atmosphere, 42a (3.2 g, 5 mmol), 10-(2-naphthyl)-9-bromo anthracene (2.3 g, 6 mmol), and Pd(PPh3)4 (0.17 g, 0.15 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and THF (50 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 171 (2.8 g, 70%). MS [M]=809
Under N2 atmosphere, 43a (2.8 g, 5 mmol), 10-(2-naphthyl)-9-bromo anthracene (2.3 g, 6 mmol), and Pd(PPh3)4 (0.17 g, 0.15 mmol) were added to a 2 M aqueous solution of potassium carbonate (20 mL) and THF (50 mL). The mixture was refluxed under stirring for about 24 hours. After completing the reaction, the mixture was cooled to normal temperature. The organic layer was separated from the reaction mixture, dried over magnesium sulfate, and distilled under reduced pressure. The residue was purified by column chromatography to prepare a compound 174 (2.6 g, 70%). MS [M]=809
44-A. Preparation of Compound 44a
9-bromoanthracene (10 g, 38.9 mmol) and 3-formylbenzeneboronic acid (5.6 g, 46.7 mmol) was dissolved in tetrahydrofuran (100 mL). A 2 M aqueous solution of potassium carbonate and tetra bistriphenylphosphino palladium (900 mg, 0.78 mmol) was added thereto and heated under stirring for 5 hours. The mixture was cooled to normal temperature and the aqueous layer was removed. The resultant was dried over anhydrous magnesium sulfate, concentrated under reduced pressure and recrystallized from petrol ether to prepare a compound 44a (9 g, 82%). MS [M+H]+=283
44-B. Preparation of Compound 44b
A compound 44a (9 g, 31.9 mmol) prepared in 44-A and N-phenyl-1,2-diamino benzene (5.87 g, 31.9 mmol) were added in dimethylacetamide (DMAC, 50 mL) and heated under stirring for 24 hours. The mixture was cooled to normal temperature and precipitated in distilled water. The precipitated was filtered and purified by column chromatography using tetrahydrofuran:hexane=1:6 to prepare a compound 44b (5 g, 36%). MS: [M+H]+=447
44-C. Preparation of Compound 44c
A compound 44b (5 g, 11.2 mmol) prepared in 44-B was added to dimethylformaldehyde (DMF, 50 mL) and stirred for 30 minutes. N-bromosuccinimide (NBS, 2 g, 11.2 mmol) was slowly added thereto and stirred for 3 hours. The solid was filtered to prepare compound 44c (5.1 g, 87%). MS [M+H]+=525
44-D. Preparation of Compound 228
A compound 44e (4.5 g, 8.0 mmol) and a compound 44c (3.5 g, 6.7 mmol) of 44-C were completely dissolved in tetrahydrofuran (100 mL). 2M potassium carbonate and tetrabistriphenyl phosphino palladium (155 mg, 0.013 mmol) was added thereto and heated under stirring for 5 hours. The mixture was cooled to normal temperature and the aqueous layer was removed. The resultant was dried over anhydrous magnesium sulfate, concentrated under reduced pressure and purified by column chromatography using tetrahydrofuran:hexane=1:6 to prepare a compound 228 (2.7 g, 78%). MS: [M+H]+=875
45-A. Preparation of Compound 45a
9-bromoanthracene (10 g, 38.9 mmol) and 3-formylbenzeneboronic acid (5.6 g, 46.7 mmol) were completely dissolved in tetrahydrofuran (100 mL). A 2 M aqueous solution of potassium carbonate and tetrabistriphenyl phosphino palladium (900 mg, 0.78 mmol) was added thereto, and heated under stirring for 5 hours. The mixture was cooled to normal temperature and the aqueous layer was removed. The resultant was dried over anhydrous magnesium sulfate, concentrated under reduced pressure and recrystallized from petrol ether to prepare a compound 45a (7.2 g, 66%). MS: [M+H]+=283
45-B. Preparation of Compound 45b
A compound 45a (7.2 g, 25.5 mmol) prepared in Example 45-A and N-phenyl-1,2-diamino benzene (4.69 g, 25.5 mmol) were added in dimethylacetamide (DMAC, 50 mL) and heated under stirring for 24 hours. The mixture was cooled to normal temperature and precipitated in distilled water. The precipitated was filtered and purified by column chromatography using tetrahydrofuran:hexane=1:6 to prepare a compound 45b (4.3 g, 38%). MS: [M+H]+=447
45-C. Preparation of Compound 45c
A compound 45b (4.3 g, 9.63 mmol) prepared in Example 45-B was added to dimethylformaldehyde (DMF, 50 mL) and stirred for 30 minutes. And then N-bromosuccinimide (NBS, 1.72 g, 11.2 mmol) was slowly added, and stirred for 3 hours. The solid was filtered to prepare a compound 45c (3.1 g, 61%). MS: [M+H]+=526
45-D. Preparation of Compound 229
A compound 44d (2.25 g, 4.0 mmol) and a compound 45c (1.75 g, 3.35 mmol) prepared in Example 45-C were completely dissolved in tetrahydrofuran (50 mL). A 2 M aqueous solution of potassium carbonate and tetrakis(triphenylphosphino)palladium (78 mg, 0.007 mmol) were added thereto and heated under stirring for 5 hours. The mixture was cooled to normal temperature and precipitated in distilled water. The mixture was cooled to normal temperature and the aqueous layer was removed. The resultant was dried over anhydrous magnesium sulfate, concentrated under reduced pressure and purified by column chromatography using tetrahydrofuran:hexane=1:6 to prepare a compound 229 (1.7 g, 98%). MS: [M+H]+=875
A glass substrate on which a thin film of ITO (indium tin oxide) was coated to a thickness of 1000 Å was immersed in distilled water having a detergent dissolved therein to wash the substrate with ultrasonic waves. At this time, the detergent was a product commercially available from Fisher Co. and the distilled water was distilled water that had been twice filtered by using a filter commercially available from Millipore. Co. ITO was washed for 30 minutes, and then washing with ultrasonic waves was repeated twice for 10 minutes by using distilled water. After the completion of washing with distilled water, washing with ultrasonic waves was carried out by using solvents such as isopropyl alcohol, acetone and methanol. The resultant product was dried.
- On the ITO transparent electrode thus prepared, 3,6-bis-2-naphthylphenylamino-N-[4-(2-naphthylphenyl)amino phenyl]carbazole (800 Å), 4,4′-bis[N-(1-naphthyl)-N-phenylamino]biphenyl(NPB) (300 Å), a host material (300 Å) of the following Table 2, and 9,10-bis-2-naphthyl-2-[4-(N-phenylbenzoimidazoyl)phenyl]anthracene (300 Å) was sequentially coated by thermal vacuum deposition to form a hole injecting layer, a hole transporting layer, a light emitting layer, an electron transporting layer in this order. An amine compound (D3, D4) was used as a dopant material of the light emitting layer.
- Lithium fluoride (LiF) and aluminum were sequentially deposited on the electron transporting layer to thicknesses of 12 Å and 2000 Å respectively, to form a cathode and to prepare an organic light emitting device.
In the above process, the deposition rate of the organic material was maintained at 0.4 to 0.7 Å/sec and the deposition rate of lithium fluoride was maintained at 0.3 Å/sec and the deposition rate of aluminum was maintained at 2 Å/sec in cathode, respectively. The degree of vacuum upon deposition was maintained at 2×10−7 to 5×10−8 torr.
When an electric current was applied to the device thus prepared, the result followed by table 2 was obtained.
The values shown in Table 2 was measured at a current density of 100 mA/cm2.
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