41 |
Oxidative coupling of olefins and aromatics using a rhodium catalyst and
a copper(II) redox agent |
US277327 |
1999-03-26 |
US6127590A |
2000-10-03 |
Douglas Taube; Roy Periana; Takaya Matsumoto |
This invention relates generally to the field of chemical synthesis, and more specifically, to the field of oxidative coupling of olefinic compounds and aromatic compounds, to produce olefinically substituted aromatic compounds. More particularly, this invention relates to methods for oxidative coupling of olefinic compounds and aromatic compounds which employ a rhodium(III) acetylacetonate catalyst and a copper(II) redox agent in a reaction medium which does not comprise a carboxylic acid component. In one embodiment, this invention pertains to methods for the preparation of styrene by the oxidative coupling of ethylene (an olefinic compound) and benzene (an aromatic compound), in the presence of Rh(acac).sub.2 Cl(H.sub.2 O), as catalyst, and Cu(II)(CH.sub.3 COO).sub.2, as copper(II) redox agent, in which benzene is both a reactant and the reaction medium. |
42 |
Method of producing styrene derivatives |
US642823 |
1996-05-03 |
US5763560A |
1998-06-09 |
Kenzo Tsujimoto; Yoshiharu Ayabe; Fujihisa Matsunaga; Ikuzo Nishiguchi; Yoshio Ishino |
A method of producing styrene derivatives expressed the general formula (2) by reacting a benzaldehyde derivative expressed by the general formula (1) with dibromomethane under the existence of zinc metal as well as an active chloride for producing various types of oxystyrene which are polymerized monomers as a photoresist material used in a high density integrated circuit process from easily available materials which also can easily be handled: ##STR1## (wherein R indicates a an alkyl group, alkoxyalkyl group, an alkylcarbonyl group, an alkoxycarbonyl group, a 5 or 6-atom heterocylclic groups, or an alkylsilyl group); ##STR2## (wherein R indicates any of the same substituents as those described above.) |
43 |
알파-(1,2)-분지형 알파-(1,6) 올리고덱스트란을 제조하기 위한 조성물 및 방법 |
KR1020117029265 |
2010-05-07 |
KR1020120027314A |
2012-03-21 |
나이예,티에리; 아이너핸드,알렉산드라; 로페즈,미첼; 포터,수잔,엠.; 리마우드-시메온,마갈리; 몽산,피에르,프레데릭,엠마뉴엘 |
대상체의 건강을 증진시키기 위한 조성물은 바람직하게는 평균 분자량이 약 10 kDa 내지 70 kDa이고, 약 10% 내지 50% 알파-(1,2)-오시드 측쇄를 가지며, 대상체에서 적어도 부분적 소화불능을 갖는 알파-(1,2)-분지형 알파-(1,6) 올리고덱스트란을 포함한다. 대상체의 건강을 증진시키는 방법은 상기 조성물을 소화관 건강을 증진시키거나 위장 장애, 콜레스테롤-관련 장애, 당뇨병 또는 비만을 예방하거나 치료하기에 유효한 양으로 대상체에게 투여하는 것을 포함한다. 조절된 크기 및 조절된 분지화도를 갖는 올리고덱스트란을 제조하는 방법은 평균 분자량이 0.5 내지 100 kDa인 알파-(1,6) 올리고덱스트란을 제공하는 단계 및 10% 이상의 알파-(1,2)-오시드 측쇄를 알파-(1,6) 올리고덱스트란에 도입하는 단계를 포함한다.
|
44 |
고체산 촉매를 이용한 하이드록시화 방향족 화합물의 알킬화 방법 |
KR1019990045641 |
1999-10-20 |
KR1020010037898A |
2001-05-15 |
박상언; 이철위; 유중환; 이영철; 정한철 |
PURPOSE: Provided is a method for alkylating hydroxylated aromatic compounds by using a porous solid acid catalyst, which has high selectivity and conversion rate. The alkylated derivatives of the hydroxylated aromatic compounds can be used for antioxidants, synthetic resins, polymerization-inhibitors, film developers, and etc. CONSTITUTION: The hydroxylated aromatic compounds are alkylated by reacting them with an alkylating agent in the presence of the porous solid acid catalyst at a temperature of 50-200 deg.C and a pressure of 1-20. The porous solid acid catalyst has a pore size of 2-20 angstrom and comprises silicon oxides and aluminium oxides, wherein the molar ratio of silicon/aluminium is 3-100. The hydroxylated aromatic compounds are phenol, catechol, hydroquinone. The alkylating agent is C3-C6 olefin compounds such as isobutylene or alcohol such as tertiary-butanol. |
45 |
COMPOSITIONS AND METHODS FOR MAKING ALPHA-(1,2)-BRANCHED ALPHA-(1,6) OLIGODEXTRANS |
US15331223 |
2016-10-21 |
US20170101484A1 |
2017-04-13 |
THIERRY NAEYE; ALEXANDRA EINERHAND; MICHEL LOPEZ; SUSAN M. POTTER; MAGALI REMAUD-SIMÉON; PIERRE FRÉDÉRIC EMMANUEL MONSAN |
Compositions for improving the health of a subject comprise alpha-(1,2)-branched alpha-(1,6) oligodextrans, preferably with an average molecular weight between about 10 kDa and 70 kDa, between about 10% and 50% alpha-(1,2)-osidic side chains, and having at least partial indigestibility in the subject. Methods for improving the health of a subject comprise administering the composition to a subject in an amount effective to improve gut health, or to prevent or treat a gastrointestinal disorder, a cholesterol-related disorder, diabetes, or obesity. Methods for making oligodextrans having controlled size and controlled degree of branching comprise providing alpha-(1,6) oligodextrans having an average molecular weight between 0.5 and 100 kDa and introducing at least 10% alpha-(1,2)-osidic side chains onto the alpha-(1,6) oligodextrans. |
46 |
COMPOSITIONS AND METHODS FOR MAKING ALPHA-(1,2)-BRANCHED ALPHA-(1,6) OLIGODEXTRANS |
US12775656 |
2010-05-07 |
US20100284972A1 |
2010-11-11 |
Thierry Naeye; Alexandra Einerhand; Michel Lopez; Susan M. Potter; Magali Remaud-Siméon; Pierre Frédéric Emmanuel Monsan |
Compositions for improving the health of a subject comprise alpha-(1,2)-branched alpha-(1,6) oligodextrans, preferably with an average molecular weight between about 10 kDa and 70 kDa, between about 10% and 50% alpha-(1,2)-osidic side chains, and having at least partial indigestibility in the subject. Methods for improving the health of a subject comprise administering the composition to a subject in an amount effective to improve gut health, or to prevent or treat a gastrointestinal disorder, a cholesterol-related disorder, diabetes, or obesity. Methods for making oligodextrans having controlled size and controlled degree of branching comprise providing alpha-(1,6) oligodextrans having an average molecular weight between 0.5 and 100 kDa and introducing at least 10% alpha-(1,2)-osidic side chains onto the alpha-(1,6) oligodextrans. |
47 |
Use of a solid hydrotalcite structure incorporating fluorides for basic catalysis of Michael or Knoevenagel reactions |
US11144594 |
2005-06-06 |
US07060859B2 |
2006-06-13 |
Francois Figueras; Boyapati Manoranjan Choudary; Mannepalli Lakshmi Kantam; Vattipally Neeraja; Kottapalli Koteswara Rao |
The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F− for producing Knoevenagel of Michael condensation reactions. The invention also concerns novel solid basic catalysts comprising a hydrotalcite structure characterized by a Mg/Al molar ratio ranging between 2.5 and 3.8 wherein at least part of the compensating anions are fluoride anions F−, and methods for preparing said novel catalysts. |
48 |
Tethered catalyst processes in microchannel reactors and systems containing a tethered catalyst or tethered chiral auxiliary |
US10642439 |
2003-08-14 |
US20040132613A1 |
2004-07-08 |
John
H.
Brophy; Kai
Jarosch |
The invention provides systems and methods for conducting reactions in which a reactant contacts a tethered catalyst and/or tethered chiral auxiliary in a microchannel and is converted to product. |
49 |
Use of a solid hydrotalcite structure incorporating fluorides for basic catalysis of michael or knoevenagel reactions |
US10220952 |
2003-03-24 |
US20030166462A1 |
2003-09-04 |
Francois
Figueras; Boyapati
Manoranjan
Choudary; Mannepalli
Lakshimi Kantam; Vattipally
Neeraja; Kottapalli
Koteswara Rao |
The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F for producing Knoevenagel or Michael condensation reactions. The invention also concerns novel solid basic catalysts comprising a hydrotalcite structure characterised by a Mg/Al molar ratio ranging between 2.5 and 3.8 wherein at least part of the compensating anions are fluoride anions F, and methods for preparing said novel catalysts. |
50 |
Preparation of substituted olefins |
US09505707 |
2000-02-17 |
US06506944B1 |
2003-01-14 |
Peter Schwab; Michael Schulz |
C6 compounds of the formula (I) E—CH2—CH═CH—CH2—E1 (I) are prepared by self metathesis or cross metathesis of compounds of the formulae (II) and/or (III) R—CH═CH—CH2—E (II) R1—CH═CH—CH2—E1 (III) where E, E1 are independently —CHO, —COOH, —COOR2, —C(O)NR3R4, —CN, R, R1 are independently H, C1-12-alkyl, C6-12-aryl or C7-13-alkylaryl and R2, R3, R4 are independently H, C1-12-alkyl, C7-13-aralkyl, in the presence of a homogeneous catalyst comprising ruthenium compounds or ruthenium complexes. |
51 |
Synthesis of functionalized and unfunctionalized olefins via cross and ring-closing Metathesis |
US09891144 |
2001-06-25 |
US20020137978A1 |
2002-09-26 |
Robert
H.
Grubbs; Arnab
K.
Chatterjee; John
P.
Morgan; Matthias
Scholl; Tae-Lim
Choi |
The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, the invention relates to the synthesis of null-functionalized or unfunctionalized olefins via intermolecular cross-metathesis and intramolecular ring-closing metathesis using a ruthenium alkylidene complex. The catalysts preferably used in the invention are of the general formula 1 wherein: M is ruthenium or osmium; X and X1 are each independently an anionic ligand; L is a neutral electron donor ligand; and, R, R1R6, R7, R8, and R9 are each independently hydrogen or a substituent selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl. |
52 |
Method for organic reactions |
US180673 |
1998-11-24 |
US6136157A |
2000-10-24 |
Gunnar Lindeberg; Mats Larhed; Anders Hallberg |
Organic reactions catalyzed by palladium, except Pd/C, are conducted with heating by microwave energy. The preferred inorganic reactions involved are coupling reactions in which a new carbon-carbon bond is formed. Preferred reactions are the Heck, Stille and Suzuki reaction. The method provides high yields in very short reaction times. |
53 |
Method of catalyzing condensation reactions |
US768680 |
1996-12-18 |
US5886196A |
1999-03-23 |
Claude Furbringer |
Hydrogen bis(oxalato)borate of the formula ##STR1## is used as a protonic acid catalyst in condensation reactions, such as Friedel-Crafts condensations, vinyl ether condensations of acetals with vinyl or propenyl ethers and acylations of phenols. The products of such condensations are, for example, dihydro-vitamin K.sub.1 monobenzoate, d,l-.alpha.-tocopherol, various intermediates in the synthesis of carotenoids as well as d,l-.alpha.-tocopherol acetate. As a result of the use in accordance with the invention of hydrogen bis(oxalato)borate various disadvantages associated with the use of other protonic acid catalysts, e.g. problems with corrosion, toxicity and environmental contamination, are avoided. The novel catalyst has advantages with respect to selectivity, yields, amounts required as well as working up after completion of the respective condensation. |
54 |
Process for the production of a cyclopentenol derivative |
US253065 |
1994-06-02 |
US5550260A |
1996-08-27 |
Kazunori Tsushima; Tomonori Iwasaki; Masaya Suzuki; Noritada Matsuo |
A process for the production of a cyclopentenol compound represented by the formula I: ##STR1## wherein R.sub.1 represents a 2-propenyl group or a 2-propynyl group from a cyclopentenolone compound represented by the formula II: ##STR2## by protecting the hydroxyl group of the compound II, reacting the protected compound II with a reagent system obtained from TiCl.sub.4, Zn and CH.sub.2 Br.sub.2 or CH.sub.2 I.sub.2 and removing the protecting group from the resulting reaction product. |
55 |
Preparation of aromatic vinyl compounds |
US158775 |
1993-12-01 |
US5489731A |
1996-02-06 |
Klaus Ditrich |
Aromatic vinyl compounds of the formula IAr--CH.dbd.CHR Iwhere Ar is an aromatic radical, and R is hydrogen, C.sub.1 -C.sub.4 -alkyl or unsubstituted or substituted phenyl, are prepared by reacting an alcohol of the formula IIAr--CH.sub.2 OH IIor an ester of the formula III ##STR1## where R' is hydrogen or C.sub.1 -C.sub.4 -alkyl, in aqueous solution with a triarylphosphine and a strong acid and then, in the presence of a mineral base, with an aldehyde of the formula IVR--CHO IV. |
56 |
Photochemical dimerization of organic compounds |
US336376 |
1989-04-11 |
US5104503A |
1992-04-14 |
Robert H. Crabtree; Stephen H. Brown; Cesar A. Muedas; Richard R. Ferguson |
At least one of selectivity and reaction rate of photosensitized vapor phase dimerizations, including dehydrodimerizations, hydrodimerizations and cross-dimerizations of saturated and unsaturated organic compounds is improved by conducting the dimerization in the presence of hydrogen or nitrous oxide. |
57 |
Alkylation process |
US597330 |
1975-07-21 |
US4070366A |
1978-01-24 |
Basil V. Gregorovich; Stewart F. MacDonald |
Substituted pyrrole compounds, such as 3-ethyl-4-methyl-5-carbethoxy pyrrole, 2,4-dimethyl-3-acetyl pyrrole and 2-methyl-5-carboxy pyrrole-4-propionic acid diethyl ester, are alkylated in a single step by reaction with an aldehyde or ketone in the presence of both an acid condensing agent such as hydriodic acid and a compatible reducing agent such as metallic zinc or stannous chloride. Suitable carbonyl reactants include formaldehyde, paraldehyde, isobutyraldehyde, acetone, cyclohexanone and methyl-isobutyl ketone.This application is a continuation application of U.S. application Ser. No. 281,624 filed Aug. 18, 1972, now abandoned, which is a continuation-in-part application of U.S. application Ser. No. 832,001, filed June 10, 1969, now abandoned. |
58 |
Continuous liquid phase process for effecting condensation of an aldehyde and a carboxylic compound containing an active methylene group |
US43564554 |
1954-06-09 |
US2780632A |
1957-02-05 |
HUMPHLETT WILBERT J |
|
59 |
알파-(1,2)-분지형 알파-(1,6) 올리고덱스트란을 제조하기 위한 조성물 및 방법 |
KR1020117029265 |
2010-05-07 |
KR101783383B1 |
2017-09-29 |
나이예,티에리; 아이너핸드,알렉산드라; 로페즈,미첼; 포터,수잔,엠.; 리마우드-시메온,마갈리; 몽산,피에르,프레데릭,엠마뉴엘 |
대상체의건강을증진시키기위한조성물은바람직하게는평균분자량이약 10 kDa 내지 70 kDa이고, 약 10% 내지 50% 알파-(1,2)-오시드측쇄를가지며, 대상체에서적어도부분적소화불능을갖는알파-(1,2)-분지형알파-(1,6) 올리고덱스트란을포함한다. 대상체의건강을증진시키는방법은상기조성물을소화관건강을증진시키거나위장장애, 콜레스테롤-관련장애, 당뇨병또는비만을예방하거나치료하기에유효한양으로대상체에게투여하는것을포함한다. 조절된크기및 조절된분지화도를갖는올리고덱스트란을제조하는방법은평균분자량이 0.5 내지 100 kDa인알파-(1,6) 올리고덱스트란을제공하는단계및 10% 이상의알파-(1,2)-오시드측쇄를알파-(1,6) 올리고덱스트란에도입하는단계를포함한다. |
60 |
항동결능을 가지는 신규 세포외다당체 |
KR1020100137709 |
2010-12-29 |
KR1020110002828A |
2011-01-10 |
이홍금; 임정한; 김일찬; 홍순규; 김덕규; 이유경; 김성진; 강필성 |
PURPOSE: A Pseudoaltermonas arctica KOPRI 2165-derived exopolysacchairde is provided to minimize tissue injury and to preserve a biological sample. CONSTITUTION: An exopolysaccharide is derived from Pseudoaltermonas arctica KOPRI 2165 is cryoprotective. The mole ratio of glucose and galactose is 1.5:1. A method for preparing the exopolysaccharide comprises: a step of culturing Pseudoaltermonas arctica KOPRI 2165; a step of adding alcohol to obtaining precipitate; a step of removing protein from the precipitate and adding alcohol; a step of dialyzing the re-precipitate and collecting materials from dialyzing diaphragm. |