Patents for C07B 41 - Formation or introduction of functional groups containing oxygen (3,087) |
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01/12/1993 | CA1312614C Process for the preparation of carboxylic acid chlorides |
01/12/1993 | CA1312612C Method of preparing n-acryloyl--amino acids |
01/05/1993 | US5177248 Process of forming polysubstituted fullerenes |
12/09/1992 | CN1019387B Process for prepn. of propanol derivatives |
12/01/1992 | CA1310980C Process for the oxidation of hydrocarbons utilizing partitioning of oxidizing gas |
11/18/1992 | CN1019110B Transition metal complex catalyze reaction |
11/18/1992 | CN1019104B Bi-ester of phosphite |
11/17/1992 | US5164527 Zeolite catalysts |
11/17/1992 | US5164497 Decarboxylation processes using mixed metal oxide catalysts |
11/17/1992 | US5164488 Formation of liposome dispersion |
11/17/1992 | CA1310332C Impurity removal from carbon monoxide and/or hydrogen- containing streams |
11/12/1992 | WO1992019623A1 Highly reactive form of copper and reagents thereof |
11/10/1992 | US5162589 Alkoxylation process catalyzed by sodium- or potassium barium phosphate |
11/10/1992 | CA1310018C Process for cleaving aliphatic ether compounds |
10/29/1992 | WO1992009545A3 New methods for the catalytic reduction of organic substrates |
10/15/1992 | WO1992017430A1 Alkoxylation of active hydrogen compounds |
10/08/1992 | DE4110835A1 Verfahren zur herstellung hydrophobierter doppelschichthydroxid-verbindungen A process for preparing hydrophobicized double layer hydroxide compounds |
10/05/1992 | WO1992017405A1 Process for producing hydrophobised double-layer hydroxide compounds |
10/05/1992 | CA2107685A1 Process for producing hydrophobicized double-layer hydroxide compounds |
09/15/1992 | US5147929 In presence of 2,3,6-mesitylene-1-sulfonyl-3-nitro-1,2,4-triazolide |
09/09/1992 | CN1018179B Hydrolysis of activated olefinic ketones and aldehydes |
09/03/1992 | DE4123991C1 Prodn. of monomer-free ethoxylate(s) - is by catalytically converting substrates with ethylene oxide, and flushing supply line periodically with nitrogen@ gas |
08/25/1992 | CA1306597C Process for preparing halogen magnesium alanate and use thereof |
08/05/1992 | CN1063277A Carbonylation of olefins |
08/04/1992 | US5136089 Acylation of alkyl aromatic hydrocarbons |
07/29/1992 | EP0496562A1 Process for producing carboxylated compound |
07/28/1992 | CA1305728C Hydrogenation process |
07/28/1992 | CA1305723C Acylation of aromatics |
07/22/1992 | EP0495547A2 Carbonylation of olefins |
07/21/1992 | US5132204 Deprotecting and decomposition to generate light; immunoassay |
07/21/1992 | CA1305491C Low pressure rhodium catalyzed hydroformylation of olefins |
07/14/1992 | CA1305153C Optically active styrene derivatives, polymers obtained from these, complexes with iridium(i) and their use |
07/07/1992 | US5128488 Phosphorus-metal complex catalyst |
07/01/1992 | CN1062341A Alkoxylation process catalyzed by sodium-or potassium barium phosphate |
06/30/1992 | US5126493 With ethylene or propylene oxide; polycrystalline iron oxide catalyst |
06/30/1992 | CA1304397C Process for the production of carboxylic acid esters |
06/17/1992 | EP0490444A1 Alkoxylation process catalyzed by sodium- or potassium barium phosphate |
06/17/1992 | EP0300018B1 Hydrogenation process |
06/11/1992 | WO1992009545A2 New methods for the catalytic reduction of organic substrates |
06/11/1992 | CA2096747A1 New methods for the catalytic reduction of organic substrates |
06/09/1992 | US5120697 Reacting calcium metal or calcium containing compound, organic activator, oxyacid metal salt; polymerization catalysts |
06/03/1992 | EP0488861A1 Process for the preparation of alkoxylated aromatic compounds |
06/03/1992 | EP0488860A1 Method for the production of polyalkoxylated aromatic compounds |
06/03/1992 | EP0488638A1 BF3 catalyzed acetylation of butylbenzene |
06/02/1992 | US5118870 Alkoxylation process catalyzed by rare earth and phosphorus-containing xerogels |
06/02/1992 | US5118860 Acetylating with acetic acid, acetic anhydride, acetyle fluoride, chloride or bromide |
06/02/1992 | US5118856 Preparation of cyclohexane-dione derivatives |
06/02/1992 | US5118833 Oxidizing alpha-hydroxy-carboxylic acid ester with hypochlorous acid in the presence of a nitroxy radical |
06/02/1992 | US5118650 Alkylation of alkylene oxide; narrow molecular weight distribution |
05/28/1992 | CA2055924A1 Bf3 catalyzed acylation of aromatic compounds |
05/26/1992 | US5117064 Selective |
05/26/1992 | US5116994 Modified sytrene-divinylbenzene polymer |
05/19/1992 | US5114900 Alkoxylation using modified calcium-containing bimetallic or polymetallic catalysts |
05/19/1992 | CA1301196C Method of reducing nitrile into a corresponding alcohol |
05/19/1992 | CA1301191C Process for the preparation of aryl perfluoroalkyl ketones |
05/12/1992 | US5112990 Oxidation of cyclic sulfites produced from dihydroxy compounds |
05/12/1992 | US5112789 Alkoxylation catalysis |
05/12/1992 | US5112788 Complex catalysts for making ethylene oxide adducts |
05/05/1992 | US5110961 Catalytic process for the synthesis of an alcohol, new metal complexes and process for the synthesis of these complexes |
04/14/1992 | US5104987 Reacting with alkylene carbonate, using mixed metal oxide catalyst; decarboxylation, decyclization |
04/14/1992 | CA1298846C Process for the asymetrical hydrogenation of carbonyl compounds and compounds thus obtained |
04/14/1992 | CA1298843C Camphor derivatives, their preparation and their use |
04/08/1992 | EP0479363A2 Alkoxylation of active hydrogen-containing compounds |
04/01/1992 | EP0478075A2 Decarboxylation processes |
04/01/1992 | EP0478074A2 Alkoxylation of carboxylated compounds |
04/01/1992 | EP0478073A2 Processes for the preparation of carboxylated compounds |
04/01/1992 | EP0478062A1 In-situ preparation of diisopinocampheyl chloroborane |
03/31/1992 | US5101068 Monofluoromethylation of organic compounds, reaction with amino acids |
03/25/1992 | CA2050820A1 In-situ preparation of diisopinocamphenyl chloroborane |
03/21/1992 | CA2051595A1 Alkoxylation of carboxylated compounds |
03/21/1992 | CA2051488A1 Processes for the preparation of carboxylated compounds |
03/21/1992 | CA2051487A1 Alkoxylation of active hydrogen-containing compounds |
03/18/1992 | EP0475513A1 Process for preparing quaternary ammonium carbonate esters |
03/15/1992 | CA2051049A1 Process for preparing quaternary ammonium carbonate esters |
02/25/1992 | US5091597 Using zinc, cadmium, mercury or tin halide promoters |
02/11/1992 | US5087731 Alkoxycarbonylation process |
02/05/1992 | EP0470000A1 Allylation reagent and method of synthesis using it |
01/29/1992 | EP0468840A2 Process for the selective epoxidation of unsaturated (meth)acrylates, new functional (meth)acrylates so obtained and their use in the synthesis of new polymers |
01/28/1992 | US5084569 Trioxy bicyclic compounds useful for preparing optically active carboxylic acids |
01/21/1992 | US5082976 Oxidation of aminostyrenes |
01/15/1992 | EP0466319A1 Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts |
01/07/1992 | CA2256214A1 Process for selective epoxidation of unsaturated (meth)-acrylates, novel functional (meth)acrylates thus obtained, and application to the synthesis of novel polymers |
12/18/1991 | CN1015104B Deprotection of allylic esters and ethers |
11/27/1991 | EP0457912A1 METHOD FOR THE PREPARATION OF $g(a),$g(b)-UNSATURATED KETONES |
11/26/1991 | US5068408 Oxidation of alcohols, thiols, sulfides, aldehydes, amines, ketones, acids, amides, ethers, esters and activated carbon-carb on double bonds |
11/19/1991 | US5066815 Asymmetric hydrogenation of ketone, ruthenium-phosphine catalyst |
11/12/1991 | CA1292002C Propanol derivatives |
11/06/1991 | EP0455332A2 Acylation or sulphonylation of aromatic compounds |
10/22/1991 | US5059723 Efficiency; purity |
10/16/1991 | EP0451714A1 Process for the acylation of alkyl aromatics |
10/13/1991 | CA2040081A1 Acylation of alkyl aromatic hydrocarbons |
10/09/1991 | EP0449966A1 Low pressure rhodium catalyzed hydroformylation of olefins |
10/03/1991 | WO1991015441A1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation |
10/03/1991 | CA2079806A1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation |
10/02/1991 | EP0448602A1 Method for functionalization of nucleophiles |
10/02/1991 | CN1014146B Carbonylation process improvement |
10/01/1991 | US5053380 Cu-al catalyst for hydrogenation |
09/25/1991 | EP0448006A2 Process for the preparation of acylales |
09/10/1991 | US5047557 Alcohol, amine intermediates |
09/05/1991 | WO1991013051A1 Use of strontium and/or barium acetyl acetonates as catalysts for the ethoxylation of propoxylation of compounds with active h atoms |