Patents for C07B 61 - Other general methods (69,072)
04/1991
04/10/1991EP0421700A1 Enhanced production of ethylene from higher hydrocarbons
04/10/1991EP0421679A1 Process for the preparation of glycol ethers
04/10/1991EP0421677A1 Process for the preparation of glycol ethers
04/10/1991EP0421436A2 Substituted carboxytetrahydroisoquinolines and derivatives thereof having pharmaceutical activity
04/10/1991EP0421385A1 Process for producing p-hydroxyneophyl m-phenoxybenzyl ether
04/10/1991EP0421364A2 Pleuromutilins
04/10/1991EP0421340A1 Method for producing 1,1-diarylethanes
04/10/1991EP0421329A2 Process for preparation of diacetal compounds
04/10/1991EP0421302A2 Process for producing enyne derivatives
04/10/1991EP0421271A2 3-Substituted-2-hydroxy-3-formyle propionic acid esters, process for their preparation and their use in the preparation of 3-substituted-3-formyle acrylic acid esters
04/10/1991EP0421218A2 Process for the preparation of trifluoromethyl groups containing carboxylic acid halide
04/10/1991EP0421196A1 One-step process for the preparation of alcohols
04/10/1991EP0421122A1 Method for the production of p-chlorotoluene
04/10/1991EP0420932A1 Catalyzed hydrofluorination of alkenes.
04/10/1991EP0420916A1 Catalyzed hydrofluorination process.
04/10/1991EP0420857A1 Reciprocating dental tool.
04/10/1991CA2027188A1 Process for preparing secondary or tertiary dialkyl dicarbonates
04/10/1991CA2027014A1 Process for preparing 3-alkoxy-3-hydroxybenzaldehyde
04/09/1991US5006660 Reacting a halogenbenzene with alcohol or phenol in presence od copper(or compound thereof), amine, and base
04/09/1991US5006648 Process for preparing partial polyol fatty acid esters
04/09/1991US5006595 Solubilization of complexes of water-insoluble organic compounds by aqueous solutions of polyvinylpyrrolidone
04/09/1991US5006585 Stain-resistant plasticizer compositions and method of making same
04/09/1991CA1282800C Acid catalyzed process
04/09/1991CA1282798C Processes for preparing iodinated aromatic compounds
04/09/1991CA1282797C Process for preparing bisphenol a
04/09/1991CA1282794C Process for preparing hydroxylamines and products thus obtained
04/09/1991CA1282793C Preparation process of cinnamate ester
04/09/1991CA1282791C Method for preparation of mercaptobenzoates
04/09/1991CA1282790C Recovery of a (trifluoromethyl)-naphthalene
04/09/1991CA1282789C Process for the co-production of aromatic carboxylates and alkyl iodides
04/09/1991CA1282788C Industrial process for the preparation of aminoacids by protein hydrolysis in an acid medium
04/06/1991CA2026178A1 Epoxidation process
04/05/1991CA2026830A1 Process for the hydrogenation of halogenated nitroaromatic derivatives with noble metal catalysts
04/05/1991CA2026825A1 Fluorocarbon purification process
04/05/1991CA2026116A1 Process for the preparation of glycol ethers
04/04/1991WO1991004241A1 Strontium and/or barium-containing catalysts for oxidative coupling processes
04/04/1991WO1991004240A1 Perovskite catalysts for oxidative coupling
04/04/1991WO1991004238A1 Vapor phase modifiers for oxidative coupling
04/04/1991WO1991004237A1 Low temperature catalysts for oxidative coupling processes
04/04/1991WO1991004236A1 High ethylene to ethane processes for oxidative coupling
04/04/1991CA2026680A1 Substituted carboxytetrahydroisoquinolines and derivatives thereof having pharmaceutical activity
04/03/1991EP0420815A1 Process for the preparation of 2-(2-haloethylthio)-phenylsulfonamides
04/03/1991EP0420770A1 Process for the preparation of dihydroxy esters
04/03/1991EP0420709A1 Purification of 1,1-dichloro-1-fluoroethane
04/03/1991EP0420658A2 A catalyst for asymmetric induction
04/03/1991EP0420455A2 Method for ammoxidation of paraffins
04/03/1991EP0420356A2 Control of isomer distribution in a chlorination process
04/03/1991EP0420100A1 Process for preparing aromatic hydrocarbons
04/03/1991EP0420048A1 Process for the obtention of methacrolein and methacrylic acid
04/03/1991EP0420035A1 Two-step process for the preparation of alcohols
04/03/1991EP0420025A2 Process for the preparation of phenolic antioxidants
04/03/1991EP0419631A1 A process for synthesising 9,9-bis(4-hydroxyphenyl) fluorene.
04/03/1991EP0419628A1 Process for the production of tertiary alkyl ethers and tertiary alkyl alcohols
04/03/1991CN1050385A Process and intermediates for preparing compounds having disubstituted acetylene moiety and retinoic acid-like biological activity
04/03/1991CN1050373A Process for preparing optically active 2-aryl-alkanoic acid, in particular 2-aryl propionic
04/03/1991CN1050340A Catalyst for catalytic gas-phase oxidation of olefins to unsaturated aldehydes
04/03/1991CA2026653A1 Process for the carbonylation of acrylic acid
04/02/1991US5004854 Heating and pressurization in presence of hydrogen of a mixture of aromatic feed containing propyl- and methylethyl-benzenes
04/02/1991US5004846 Process for producing nitrobenzenes
04/02/1991US5004844 Heating and pressurization of aldehydes and ketones in the presence of a catalyst to form an alcohol
04/02/1991US5004842 Aromatic vinyl ether compounds and compositions, and method of making the same
04/02/1991US5004839 In the presence of a secondary amin catalyst, a halogen acid and an insoluble metal oxide
04/02/1991US5004837 Oxidation of cycloalkane
04/02/1991US5004830 Process for oxidation of alkyl aromatic compounds
04/02/1991US5004827 Catalytic vapor phase process for producing dihydrocarbyl carbonates
04/02/1991US5004823 Low pressure rhodium catalyzed hydroformylation of olefins
04/02/1991US5004797 Partly fluorinated carboxylic acids and derivatives thereof, processes for their preparation and their use
04/02/1991US5004661 Photoconductive member having symmetrical and unsymmetrical squaraine compositions
04/02/1991US5004569 Process for the production of carboxylic acid esters
04/02/1991US5004568 Reacting With Carbon Monoxide Using A Group 8 Noble Metal Halide Catalyst And A Group 1B Metal Halide
04/02/1991CA1282436C Multistage process for converting oxygenates to liquid hydrocarbonsand ethene
04/02/1991CA1282434C Process for the preparation of the parylene dimer
04/02/1991CA1282431C Production of crystalline tribromostyrene
04/02/1991CA1282426C PROCESS FOR PREPARING TRANS-.beta.-BENZOYLACRYLIC ACID ESTER
04/02/1991CA1282422C Process for preparing vinyl-tri-(tertiary- substituted)alkoxysilanes
04/02/1991CA1282420C Process for producing 2-methyl-1,4-naphthoquinone
04/02/1991CA1282405C Method for making uniformly sized particles from water-insoluble organic compounds
04/02/1991CA1282397C Zeolite l
03/1991
03/30/1991CA2026355A1 Process for the preparation of 2-(2-halogenoethylthio)-phenylsulfonamides
03/30/1991CA2025357A1 Catalyst for asymmetric induction
03/29/1991WO1991004979A1 A method of preparing monothiophosphoric acid by sulfurizing a phosphite in the presence of an amide
03/28/1991WO1991004970A1 Cyclic peroxyacetal lactone, lactol and ether compounds
03/28/1991WO1991004960A1 Process for the preparation of dihidroxy esters
03/28/1991DE3930993A1 Prepn. of p-halo:benzyl halide(s) - from reaction of benzyl halide with zeolite catalyst, for use as synthetic intermediates
03/28/1991CA2067101A1 Cyclic peroxyacetal lactone and ether compounds
03/27/1991EP0419412A2 Process for the preparation of benzotriazoles
03/27/1991EP0419409A2 Iridium complexes, process for their preparation and their use
03/27/1991EP0419312A1 Method for the production of optically active 2-aryl-propionic acids
03/27/1991EP0419265A1 A process for converting and upgrading organic resource materials in aqueous environments
03/27/1991EP0419132A2 Process and intermediates for preparing compounds having a disubstituted acetylene moiety and retinoic acid-like biological activity
03/27/1991EP0419077A2 Synthesis of low molecular weight ethylene propylene glycol ethers via olefin addition to the corresponding glycol
03/27/1991EP0419045A1 Method for alkylation of phenols, and catalyst therefor
03/27/1991EP0418975A1 Low temperature catalysts for oxidative coupling processes
03/27/1991EP0418974A1 Silver-containing catalysts for oxidative coupling
03/27/1991EP0418973A1 Perovskite catalysts for oxidative coupling
03/27/1991EP0418972A1 Strontium and/or barium-containing catalysts for oxidative coupling processes
03/27/1991EP0418971A1 High ethylene to ethane processes for oxidative coupling
03/27/1991EP0418970A1 Vapor phase modifiers for oxidative coupling
03/27/1991EP0418939A1 Preparation of 9,9-bis(aminophenyl)fluorenes or 9-phenylimidofluorenes
03/27/1991EP0418764A2 A process for producing a carbonyl compound