Patents for C07B 61 - Other general methods (69,072)
06/1992
06/09/1992US5120880 Preparation of muscone, intermediates for this preparation and preparation of said intermediates
06/09/1992US5120878 Process for the preparation of secondary monomethylalkyl amines
06/09/1992US5120877 Process for the production of carbonyl compounds
06/09/1992US5120875 Process for the preparation of chlorine-substituted aromatic amines
06/09/1992US5120874 Catalytic hydrogenation of benzyl group of corresponding 5-benzyioxy derivative
06/09/1992US5120864 Intermediates, process for their preparation, and their use for the synthesis of vitamins a and e
06/09/1992US5120863 Process for preparation of diacetal compounds
06/09/1992US5120855 Formation of hydroxyaromatic ketoacetal from a hydroxyaromatic methylketone and production of 5-(4'-hydroxyphenyl)hydantoin and Dp-hydroxyphenylglycine from 4-hydroxyacetophenone
06/09/1992US5120700 Comprises copper, iron aluminum, optionally zinc and support
06/09/1992US5120697 Reacting calcium metal or calcium containing compound, organic activator, oxyacid metal salt; polymerization catalysts
06/09/1992US5120520 In presence of metal or metal-contianing catalyst
06/09/1992US5120412 Preparation of hypericin
06/09/1992CA1303067C Process for producing methanol or mixed alcohol
06/09/1992CA1303065C Process for the preparation of hydroxylated arometic derivatives, using the baeyer-villiger reaction
06/09/1992CA1303062C Process for the preparation of perfluoroacyl fluorides
06/09/1992CA1303060C Method for producing (aryl substituted) carboxylic acid or its salt
06/09/1992CA1303058C Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
06/09/1992CA1303056C Process for the fabrication of dialkylaminoalkyl (meth)acrylate
06/09/1992CA1303051C Preparation of 4,4-disubstituted 5-methylene-1,3- dioxolan-2-ones
06/09/1992CA1303036C Production of alkaloid dimers using ferric ion
06/09/1992CA1303014C Advanced catalytic system used for olefin metathesis, with prolonged service and shelf life
06/09/1992CA1303013C Silver based catalyst for producing ethylene oxyde
06/09/1992CA1303011C Compound based on a spinelle structure oxide, its application as a catalyst and process for its preparation
06/08/1992WO1992010486A1 Method for preparing 5-hydroxymethyl furfural by contact catalysis
06/08/1992CA2097812A1 5-hydroxymethylfurfural preparation process by heterogeneous catalysis
06/07/1992WO1992012946A1 Production of alkenes
06/07/1992WO1992010092A1 Very large scale immobilized polymer synthesis
06/07/1992CA2097708A1 Very large scale immobilized polymer synthesis
06/07/1992CA2097434A1 Production of alkenes
06/04/1992WO1992009367A1 Process for regenerating a zeolite catalyst
06/04/1992CA2097306A1 Process for regenerating a zeolite catalyst
06/04/1992CA2055739A1 Method for ammoxidation of paraffins
06/04/1992CA2055628A1 Carbonylation process and catalyst composition
06/04/1992CA2055519A1 Decabromodiphenylalkane process
06/03/1992EP0488861A1 Process for the preparation of alkoxylated aromatic compounds
06/03/1992EP0488860A1 Method for the production of polyalkoxylated aromatic compounds
06/03/1992EP0488834A1 Spiro-epoxy-cyclohexane derivatives, their preparation and their use in polymer chemistry
06/03/1992EP0488638A1 BF3 catalyzed acetylation of butylbenzene
06/03/1992EP0488611A1 Process for producing 4-acetoxyazetidinones
06/03/1992EP0488597A1 Method for preparing 1,1,2,2-tetrakis(4-hydroxy-3,5-dimethylphenyl)ethane, epoxy resin composition comprising it, epoxy resin derived from it and method for preparing the resin and composition
06/03/1992EP0488073A1 Dimerization process of n-butene
06/03/1992EP0488069A2 A process for the catalytic oxidation of olefins to carbonyl compounds
06/03/1992EP0488054A1 Use of a mixed catalyst system to improve the viscosity stability of rosin resins
06/03/1992EP0488045A2 Process for the preparation of beta-Isophorone
06/03/1992EP0487990A1 Process for the preparation of a substituted indene
06/03/1992EP0487903A2 Process for the preparation of 1,3 propanediol
06/03/1992EP0487853A2 Process for producing methacrylic acid
06/03/1992EP0487714A1 Selective ethylation of naphthalene compounds
06/03/1992EP0487555A1 Process for preparing linear alpha-olefins from ethylene
06/03/1992EP0457853A4 A process for the catalytic conversion of a c 9?+ aromatics feed
06/03/1992EP0452412A4 Process for the production of alpha-6-deoxytetracyclines
06/03/1992EP0307446B1 Liquid phase isomerization of iodoaromatic compounds
06/03/1992CN1061599A Novel diketene imine derivative and process for preparing same
06/03/1992CN1061588A Improved hydroformylation process
06/03/1992CN1016870B Process for the preparation of 2-oxo-1, 3-dioxolanes
06/02/1992US5118895 Process for preparing alkyl-substituted aromatic hydrocarbon
06/02/1992US5118888 Process for the preparation of 1,2-difluoro-ethylene and 1-chloro-1,2-difluoro-ethylene
06/02/1992US5118887 Using catalyst obtained by calcining alumina containing fibrils of polytetrafluoroethylene
06/02/1992US5118884 Hydrogenation of citral
06/02/1992US5118883 Self-condensation, catalytic hydrogenolysis
06/02/1992US5118877 Process for the preparation of 2,3-dimethylphenol and of 3,4-dimethylphenol
06/02/1992US5118868 Oxidation catalyst for partial oxidation of alcohol
06/02/1992US5118867 Hydroformylation of an definically unsaturated compound, rhodium catalyst, a soluble ammonium salt of a sulfonated phosphorous acid triester
06/02/1992US5118866 Catalytic oxidation of alcohol with catalyst system of cuprous chloride and tetramethyl piperidine oxide
06/02/1992US5118864 Preparation of cyclopentenones
06/02/1992US5118862 Process for producing αβ-unsaturated carbonyl compound
06/02/1992US5118860 Acetylating with acetic acid, acetic anhydride, acetyle fluoride, chloride or bromide
06/02/1992US5118859 Preparation and purification of 2-hydroxy-4-(2'-hydroxyethoxy)phenyl aryl ketones
06/02/1992US5118836 Optically active fluorine-containing 3-hydroxybutyric acid esters and process for producing the same
06/02/1992US5118833 Oxidizing alpha-hydroxy-carboxylic acid ester with hypochlorous acid in the presence of a nitroxy radical
06/02/1992US5118829 Process for cycloalkyl substitution of hydrogen containing silanes
06/02/1992US5118821 Catalytic hydrogenation of maleic anhydride
06/02/1992US5118818 Process for preparing organic carbonates
06/02/1992US5118653 Chemical process and catalyst
06/02/1992US5118650 Alkylation of alkylene oxide; narrow molecular weight distribution
06/02/1992US5118483 Hydrorefining catalysts
06/02/1992CA1302649C Process for the preparation of l-phosphinothricine (derivatives) and also of their alkyl esters
06/02/1992CA1302648C PROCESS FOR THE PRODUCTION OF N-FORMYL-.alpha.-L-ASPARTYL-L- PHENYLALANINE METHYL ESTER
06/02/1992CA1302437C Production of ethers from olefins
06/02/1992CA1302432C Process for the preparation of 5-hydroxydiprafenone and its acid addition salts
06/02/1992CA1302430C Process for preparing 2,2-bis-(3-nitrophenyl)-hexafluoropropane, and 2,2-bis-(4-carboxy-3-nitrophenyl)-hexafluoropropane occurring as an intermediate
06/02/1992CA1302428C Process for the preparation of phosphorothioic dichlorides
06/02/1992CA1302427C Catalytic process for preparing dialkyl phosphorodithioic acids
06/02/1992CA1302413C Process for 6,7-dihydro-5,8-dimethyl-9-fluoro-1-oxo- 1h,5h-benzo[ij]quinolizine-2-carboxylic acid
06/02/1992CA1302401C Process for the preparation of 21-hydroxy-20-keto-delta__ -steroids and new intermediate compounds formed in this process
05/1992
05/31/1992WO1992009554A1 Azeotropic assisted transvinylation technology
05/31/1992CA2075622A1 Azeotropic assisted transvinylation technology
05/31/1992CA2044480A1 Use of a mixed catalyst system to improve the viscosity stability of rosin resins
05/28/1992WO1992009548A1 Process for producing dichloropentafluoropropane
05/28/1992CA2074515A1 Method for producing dichloropentafluoropropanes
05/28/1992CA2055924A1 Bf3 catalyzed acylation of aromatic compounds
05/27/1992EP0487284A2 Removal of carbonyl impurities from a carbonylation process stream
05/27/1992EP0487208A1 Production of carbonates
05/27/1992EP0487160A1 Process for the preparation of azines
05/27/1992EP0486993A1 Preparation of a zinc aluminate supported dehydrogenation catalyst
05/27/1992EP0486806A1 Process for the preparation of racemic pilosinine derivatives
05/27/1992EP0398998A4 Synthetic porous crystalline material, its synthesis and use
05/27/1992EP0313661B1 Process for preparing 3-ethylbenzophenone
05/27/1992EP0304495B1 Process for selectively monohydroesterifying diolefin
05/27/1992CN1061412A Process for preparing trioxane