序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
181 Catalyst, methods of producing it and methods of use US10121728 2002-04-15 US20020132863A1 2002-09-19 Robert Schlogl; Michael Wohlers; Thilo Belz; Thomas Braun
A catalyst which consists of amorphous carbon with molecular planes that have curved surfaces and contain six-membered and non-six-membered carbon rings, optionally having at least one catalytically active, low-valency metal covalently bound thereto. Methods of producing the catalyst and applications thereof are included.
182 Transfer hydrogenation process and catalyst US09381160 1999-11-09 US06372931B1 2002-04-16 Andrew John Blacker; Ben James Mellor
A catalytic transfer hydrogenation process is provided. The catalyst employed in the process is a metal cyclopentadienyl complex which is coordinated to defined bidentate ligands. Preferred metals include rhodium, ruthenium and iridium. Preferred bidentate ligands are diamines and aminoalcohols, particularly those comprising chiral centers. The hydrogen donor is advantageously a secondary alcohol or a mixture of triethylamine and formic acid. The process can be employed to transfer hydrogenate ketones and imines, which are preferably prochiral. Catalysts for use in such a process are also provided.
183 Shaped hydrogenation catalyst and processes for their preparation and use US347748 1999-07-06 US06049008A 2000-04-11 Brian D. Roberts; William J. Carrick; Deepak S. Thakur
Shaped catalyst compositions are disclosed comprising (i) at least one metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt and iron, (ii) calcium silicate and (iii) at least one clay material. Also disclosed are a process for preparing the foregoing shaped compositions and a process for hydrogenating aldehydes, ketone, carboxylic acids, carboxylic acid esters and nitro aroniate compounds using these shaped catalysts.
184 Process for the manufacture of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein US459011 1995-06-02 US5760282A 1998-06-02 Ralph Thomas Baker; Richard Paul Beatty; William Brown Farnham; Robert Lewis Wallace, Jr.
A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl. The process involves reacting a metallacycle of the formula L.sub.m M(1,4-C(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 --) wherein R.sup.1 and R.sup.2 are as defined above, and wherein M is a metal selected from the group consisting of Group 8, Group 9 and Group 10 metals, each L is a ligand selected from the group consisting of Group 14, Group 15 and Group 16 ligands, and m is an integer from 1 to 4, in the liquid phase with hydrogen. Also disclosed are certain compositions comprising product compounds within the above product compound formula and certain metallacycle compounds within the above metallacycle formula.
185 Process for the manufacturing of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein US458784 1995-06-02 US5670679A 1997-09-23 Ralph Thomas Baker; Richard Paul Beatty; William Brown Farnham; Robert Lewis Wallace, Jr.
A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3 --, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl. The process involves reacting a metallacycle of the formula L.sub.m M(1,4-C(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 C(R.sup.2).sub.2 --) wherein R.sup.1 and R.sup.2 are as defined above, and wherein M is a metal selected from the group consisting of Group 8, Group 9 and Group 10 metals, each L is a ligand selected from the group consisting of Group 14, Group 15 and Group 16 ligands, and m is an integer from 1 to 4, in the liquid phase with hydrogen. Also disclosed are certain compositions comprising product compounds within the above product compound formula and certain metallacycle compounds within the above metallacycle formula.
186 Methods for the synthesis of chemical compounds US622918 1996-03-27 US5648571A 1997-07-15 Charles J. Rogers; Alfred Kornel
Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol phase transfer agent, and mixtures thereof. The mixture is heated at a temperature of from 30.degree. to 400.degree. C. in the presence of at least one alkali or alkaline earth metal compound to cause reduction of the starting material by catalytic transfer hydrogenation and form the desired chemical compound product.
187 Methods for the synthesis of chemical compounds US191504 1994-02-04 US5478548A 1995-12-26 Charles J. Rogers; Alfred Kornel
Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol phase transfer agent, and mixtures thereof. The mixture is heated at a temperature of from 30.degree. to 400.degree. C. in the presence of at least one alkali or alkaline earth metal compound to cause reduction of the starting material by catalytic transfer hydrogenation and form the desired chemical compound product.
188 Method for reducing an .alpha. .beta.-unsaturated ketone US169614 1993-12-17 US5459264A 1995-10-17 Mitsuru Imuta; Makoto Kobayashi; Teruo Iizuka
A method for reducing an .alpha.,.beta.-unsaturated ketone of the present invention includes the step of treating the .alpha.,.beta.-unsaturated ketone with a silyl compound in the presence of a Lewis acid and alcohol to selectively reduce the carbonyl group of the .alpha.,.beta.-unsaturated ketone. According to this method, a deoxy-compound can be obtained from the .alpha.,.beta.-unsaturated ketone by selectively reducing the carbonyl group without reducing an .alpha.,.beta.-unsaturated bond.
189 Process for the dechlorination and/or debromination of fluorine-and chlorine- and/or bromine-containing aromatic compounds US953209 1992-09-29 US5283378A 1994-02-01 Dietmar Bielefeldt; Albrecht Marhold
Fluorine- and chlorine- and/or bromine-containing aromatic compounds are dechlorinated and/or debrominated with hydrogen in an industrially advantageous and selective manner, if the palladium catalyst is present in stationary phase and the aromatic compound in gas phase.
190 Reduction of nitro compounds with aqueous solutions of a formate US599345 1975-07-28 US4093646A 1978-06-06 Peter Bamfield; Peter Michael Quan; Trevor James Smith
A process for the reduction of organic nitro compounds containing groups which confer solubility in water comprising treatment of said compounds with an aqueous solution of a formate in presence of a hydrogenation catalyst.
191 Reductive dimerization of acrylonitrile US3557186D 1968-06-17 US3557186A 1971-01-19 LEITNER HANS; WINTERSBERGER KARL
A PROCESS FOR THE REDUCTIVE DIMERIZATION OF A,B-UNSATURATED NITRILES, AMIDES OR ESTERS SUSCEPTIBLE TO MICHAEL REACTION BY TREATMENT WITH ALKALI METAL OR ALKALINE EARTH METAL AMALGAMS IN THE PRESENCE OF COMPOUNDS WHICH ARE PROTON DONORS BUT DO NOT REACT APPRECIABLY UNDER THE REACTION CONDITIONS, PARTICULARLY WATER, AND IN THE PRESENCE OF HEXAMETHYLETHYLENETETRAMINE.
192 Reduction method of carbonyl group US3429876D 1965-02-12 US3429876A 1969-02-25 NAGATA WATARU; ITAZAKI HIROSHI
193 Partial hydrogenation of aromatic compounds US51672465 1965-12-27 US3409684A 1968-11-05 EUGENE ARISTOFF; RIEVE ROBERT W; HAROLD SHALIT
194 Activated hydrogenation catalysts US22617562 1962-09-25 US3336239A 1967-08-15 BAILEY DONALD L; COLIN EABORN
195 Hydrogenation process US9830561 1961-03-27 US3205217A 1965-09-07 JACK KWIATEK; MADOR IRVING L
196 Nickel-titanium catalysts US50829155 1955-05-13 US2889286A 1959-06-02 FAULKNER ALICE M
197 Dehydrogenation of hydrocarbon oil and catalyst therefor US55723644 1944-10-04 US2481824A 1949-09-13 CLAUSSEN WILLIAM H; WELLMAN HOMER B
198 Hydrogenation catalyst and its preparation US1273635 1935-03-23 US2067368A 1937-01-12 CLIFFORD WILLIAMS EVAN; MCALLISTER SUMNER H
199 Process of reducing organic compounds US49553430 1930-11-13 US1971743A 1934-08-28 HEINRICH BERTSCH
200 Catalytic hydrogenation of nonnitrogenous organic compounds US25691728 1928-02-25 US1931846A 1933-10-24 JAEGER ALPHONS O
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