Patents for C07B 61 - Other general methods (69,072)
06/1990
06/13/1990CN1042897A Alkylation of polycyclic aromatic compounds to alkylates enriched in para-substituted isomers
06/13/1990CN1008366B Modified 8-ring zeolites as catalysts for conversion of methanol and ammonia to dimethylamine
06/12/1990US4933509 Using surface treated magnesium oxide catalyst
06/12/1990US4933507 Method of dehydrogenating cyclohexenone
06/12/1990US4933504 Process for the preparation of mono-ethers of hydroquinones
06/12/1990US4933502 Reacting alkylene oxide with alkanol in the presence of catalyst prepared by reacting sulfuric acid with an aluminum catalyst
06/12/1990US4933500 Process for the preparation of citral
06/12/1990US4933499 Process for purification of alkenyl aromatic compounds containing a benzaldehyde impurity
06/12/1990US4933498 Preparation of trialkoxybenzaldehydes
06/12/1990US4933497 Preparation of hydroxybenzaldehydes by hydrocarbonylation of halophenols
06/12/1990US4933487 Preparation of 4-pentenates
06/12/1990US4933483 Carbonylation of pentenenitriles
06/12/1990US4933482 Hydrogenation of beta-keto acid in presence of ruthenium phosphine complex
06/12/1990US4933478 Process for the manufacture of aliphatylphosphinic acid derivatives
06/12/1990US4933473 Process for producing neopentyl glycol
06/12/1990CA2005244A1 Process and catalyzer for dehydration or dehydrocyclization of hydrocarbons
06/12/1990CA2004961A1 Catalyst recovery
06/12/1990CA2004959A1 Manufacture of 5-cyanovaleric acid and its esters
06/12/1990CA1270262A1 Process for the preparation of dinitroalkylbenzenes
06/12/1990CA1270203A1 Perfumery compounds and their preparations
06/09/1990CA2004586A1 Treatment of acetic acid with hydrogen in the presence of a hydrogenation catalyst
06/07/1990CA2004753A1 Ester production by hydrogenation of carboxylic acids and anhydrides
06/07/1990CA2004629A1 Chemical process
06/06/1990EP0371884A1 Process for the preparation of dinitrotoluenes
06/06/1990EP0371837A2 Process for the synthesis of esters of dithiocarbamic acids by substitution of hydroxylated positions of mono- or polyhydroxylated molecules, products of this process and their uses
06/06/1990EP0371692A2 Verfahren zur Herstellung eines Ethers.
06/06/1990EP0371614A1 Catalyst and catalyst precursor containing vanadium and antimony
06/06/1990EP0371331A1 Copper-containing supported catalyst, process for its preparation and method for the production of N-alkylated aryl amines using this catalyst
06/06/1990EP0371152A1 Metal oxide powders, their mixtures, mixed metal oxide powders, their mixtures and use thereof for the catalytic dehydrogenation of hydrocarbons
06/06/1990CN1042669A Catalyst and catalyst precursor containing vanadium and antimony
06/06/1990CA2004641A1 Use of oligomers of alkenyl groups-substituted aromatics as co-agents
06/05/1990US4931594 9,9-bis/4-hydroxyphenyl/fluorene by reacting phenol with fluorenone; acidic cationic exchange resin catalyst
06/05/1990US4931590 Preparation of adipic acid
06/05/1990US4931586 Process for the continuous production of 2-phosphone-butane-1,2,4-tricarboxylic acid and alkali metal salts thereof
06/05/1990US4931584 Process for the preparation of monoesters or diesters of-9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid and for the preparation of symmetrical or asymmetrical methylidenemalonates
06/05/1990US4931582 Fluorinated, acrylamide-functional monomers
06/05/1990US4931576 Epichlorohydrin and a mercaptan
06/05/1990US4931568 Reacting c1-c3 alykyloxythiophenes with alcohol; monomers for electroconductive polymers
06/05/1990US4931418 Catalyst comprising potassium and cesium pyrosulfates with vanadium pentoxide and anatase
06/05/1990US4931218 Sulfated hydroxy mixed ethers, a process for their production, and their use
06/05/1990CA2001514A1 Dehydrogenation process and catalyst
06/05/1990CA1270005A1 Catalytic conversion of propane to ethylene over zsm- 23
06/05/1990CA1270004A1 Catalytic conversion of propane to ethylene over zsm- 50
06/05/1990CA1270001A1 Oligomerization of olefins
06/05/1990CA1269998A1 Processes for the production of alkylene glycol in the presence of organometalate
06/05/1990CA1269991A1 Process for the preparation of diesters of dicarboxylic acids
05/1990
05/31/1990WO1990005726A1 Selective monoepoxidation of styrene, styrene analogs, and styrene derivatives to the corresponding oxide with molecular oxygen
05/31/1990WO1990005711A1 1-hydroxymethyl polyolefin via hydroformylation
05/31/1990WO1990005710A2 Minimizing deactivation of ether synthesis catalyst
05/31/1990CA2002598A1 Preparation of biaryl compounds
05/30/1990EP0370880A1 Trialkoxy-substituted m-phenylene diamines, process for their preparation, and their use as coupling agents in the oxidation dyeing of keratinic fibres, especially human hair
05/30/1990EP0370805A2 Improved polybutene process
05/30/1990EP0370757A1 Titania-containing catalysts, their preparation and use in Fischer-Tropsch synthesis
05/30/1990EP0370730A2 Method of producing ethylenediamines
05/30/1990EP0370686A2 A process for preparing quinolone carboxylic acid intermediates
05/30/1990EP0370563A1 Preparation of conjugated dienes
05/30/1990EP0370553A2 Basic metal-zeolite compositions, their preparation and use in base catalyzed reactions
05/30/1990EP0370343A1 Method for the production of 4-methyl-2-cyclohexylphenol
05/30/1990EP0370275A1 Process for making a C8-18 olefin oligomer
05/30/1990EP0370083A1 Seal for rotatable shaft.
05/30/1990EP0324360B1 Process for the preparation of isobutyric acid or derivatives thereof
05/30/1990CN1042483A Treatment of rhodium catalysts
05/29/1990US4929790 Catalytic conversion of propane to ethylene over ZSM-23
05/29/1990US4929787 Process for converting methane to higher hydrocarbons
05/29/1990US4929784 Process for the preparation of optionally substituted benzyl-benzenes
05/29/1990US4929776 Hydrogenation, ruthenium catalysts
05/29/1990US4929773 Method of producing 1-(4'-isobutylphenyl)ethanol
05/29/1990US4929772 Process for preparing polyhalogenated carbinols
05/29/1990US4929771 Process for the preparation of alkyl-substituted phenols or naphthols
05/29/1990US4929768 Process for preparing dialdehyde
05/29/1990US4929767 Pretreating an organic solution of a deactivated rhodium-phosphine complex to improve rhodium extractability into an aqueous solution; reuse
05/29/1990US4929766 Process are the preparation of p-hydroxy-benzaldehydes
05/29/1990US4929762 Process for producing a phenol and/or a cyclohexanone
05/29/1990US4929758 Preparation of tert-butylamine from isobutene
05/29/1990US4929757 Oxyalkylation, hydrogenation metal catalysts
05/29/1990US4929756 Process for preparing oximes
05/29/1990US4929737 Forming aminohaloaromatic compounds
05/29/1990US4929724 Phosphorous-nitrogen dimerization catalysts
05/29/1990CA1269675A1 Oxidation of methane over heterogeneous catalysts
05/29/1990CA1269672A1 Preparation of monoalkylene glycols using two liquid phase reaction menstruum
05/29/1990CA1269670A1 Process for preparing ester containing organosilicon compounds
05/29/1990CA1269657A1 Process for the preparation of alkylated glycosyl fluorides free from hydroxyl groups
05/28/1990CA2003907A1 Hydroformylation process
05/23/1990EP0369902A1 Selective monoepoxidation of styrene, styrene analogs, and styrene derivatives to the corresponding oxide with molecular oxygen
05/23/1990EP0369864A2 Process for producing aromatic amines
05/23/1990EP0369728A1 Haloalkylation of aromatic compounds
05/23/1990EP0369691A2 Process for preparing optically active 3-hydroxybutanoic acid
05/23/1990EP0369439A2 Use of monolithic honeycomb catalyst carriers in chlorination and oxychlorination reactions
05/23/1990EP0369344A1 N-arylation of isatins
05/23/1990EP0369249A2 Process for the preparation of cyclic carbonates
05/23/1990EP0368946A1 1,2-dioxetanes.
05/23/1990EP0368911A1 Catalyst composition.
05/23/1990EP0329521B1 Process for the preparation of tertiary mercaptans from homopolymers of isobutene
05/23/1990EP0188484B1 Procedure for producing stearyl-beta-(3,5-dibutyl-4-hydroxyphenyl)propionate and bis-(beta(3,5-dibutyl-4-hydroxybenzyl)-methyl-carboxyethyl)sulphide
05/23/1990CN1042344A Improved process for preparation of 1,1,1,2-tetrafluoroethane
05/23/1990CN1042317A Composition of matter and method for conversion of c3 and c4 hydrocarbons
05/23/1990CN1008095B Preparation of chiral rhodium-diphosphine complex
05/23/1990CN1008089B Improved hydroformylation process
05/23/1990CN1008088B Alcohols production by hydrogenation of carboxylic acids
05/23/1990CN1008086B Continuous process for cracking 1,2-dichloroethane