Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
02/1991
02/27/1991EP0413918A2 Method for the production of alkoxyalkylidenemalonic acid esters
02/27/1991CN1049495A Butyric acid derivatives
02/27/1991CN1049462A Carbonylation catalyst system
02/27/1991CN1011783B Process for preparation of cyclopentyl ethers
02/27/1991CN1011777B Process for converting aldehyde into corresponding diene
02/26/1991US4996382 Oxidative coupling of methane with oxygen containing gas using magnesium oxide/alkali metal oxide catalyst
02/26/1991US4996375 Vitamin E intermediates and a process for their manufacture and conversion into Vitamin E
02/26/1991US4996372 In a basic aqueous solution, then acid cleaving in the presence of hydrogen peroxide
02/26/1991US4996364 Use of alkaline earth salts of polycarboxylic acid monoesters as alkoxylation catalysts
02/26/1991US4996361 Process for the preparation of optically active secondary arylamines
02/26/1991US4996358 Control, prevention rheumatic diseases
02/26/1991US4996357 Process for preparing acetic acid
02/26/1991US4996349 Enantioselective process
02/26/1991US4996320 Thyroid inhibitors
02/26/1991US4996316 Process for the preparation of tertiary N, N-dimethylamines
02/26/1991US4996286 Trihydrazide latent curing agent for epoxy resins
02/26/1991US4996235 3,4-diphenylbutanamines
02/26/1991US4996211 Anticonvulsants, treating neurodegenerative diseases
02/26/1991US4996158 Optical resolution of racemic alcohols
02/26/1991US4996007 Process for the oxidation of alcohols to aldehydes/acids/esters
02/26/1991CA1280848C2 Process for preparing amides from nitriles and amines
02/26/1991CA1280769C Production of tetrafluoroethylene and hexafluoropropylene
02/26/1991CA1280768C2 Cyclohexane 1, 3-dione derivatives
02/26/1991CA1280766C Compounds and compositions
02/26/1991CA1280764C Tetramethylcyclopropanecarboxylates
02/26/1991CA1280763C PROCESS FOR THE PREPARATION OF CERTAIN PAIRS OF ENANTIOMERS OF .alpha.-CYANO-3-PHENOXY-4-FLUOROBENZYL PERMETHRATE
02/26/1991CA1280762C Vinylcyclopropanecarboxylic acid esters
02/26/1991CA1280761C Calixarene derivatives and use of such compounds as accelerators in adhesive compositions
02/26/1991CA1280759C Benzoyl-ureas having acaricide and insecticide activity
02/26/1991CA1280757C Preparation of monochloropinacolone
02/26/1991CA1280756C Preparation of cyclohexanedione derivatives
02/21/1991WO1991001966A1 Process for the continuous preparation of light acrylates
02/21/1991WO1991001965A1 Process for splitting a mixture of fatty acid esters
02/20/1991EP0413666A1 Butyric acid derivatives
02/20/1991EP0413140A1 Process for production of carboxylic acid esters and formamide
02/20/1991CN1049332A Process for preparing neoalkyl triol triesters
02/20/1991CN1049331A Preparation of alkyl propionates
02/20/1991CN1049330A Processing of butyric ethyl ester
02/20/1991CN1049329A Adsorptive separation of paraxylene using diethyltoluene desorbent
02/20/1991CN1049300A Agglomerates of malachite crystals and method for their preparation
02/20/1991CN1011694B Oligomerization to alpha-olefins
02/20/1991CN1011693B Process for trimerization
02/20/1991CN1011689B Crystalline gallophosphate compositions
02/20/1991CN1011664B Improved syngas conversion catalyst, production and use thereof
02/20/1991CA2023035A1 Dihalovinylbenzyl esters, their preparation, intermediates for their preparation and their use for controlling pests
02/19/1991US4994619 Substituted cyclic ketones, substituted cyclic enones, and process for producing the same
02/19/1991US4994618 Bevantolol preparation
02/19/1991US4994617 Aminoalcohols, their preparation process and their applications, particularly in therapeutics
02/19/1991US4994616 Anilide herbicides
02/19/1991US4994615 Process for the preparation of optically active secondary arylamines
02/19/1991US4994612 Ylidene sulfonamide derivatives
02/19/1991US4994608 By-product inhibition
02/19/1991US4994603 Reacting methanol and carbon monoxide in presence of sodium methylate, binding sodium ions with nonionic polyethers
02/19/1991US4994602 Hydrogenating 4-butoxyacetoacetic ester with ruthenium phosphine catalyst to 4-butoxy-3-hydroxybutanoic ester, reacting with lithium enolate and hydrogenation
02/19/1991US4994601 Herbicidal α-(5-aryloxy-naphthalen-1-yl-oxy)-propionic acid derivatives
02/19/1991US4994600 Process for preparing trans-β-benzoylacrylic acid ester
02/19/1991US4994590 Excellent catalyst for asymmetric hydrogenation
02/19/1991US4994570 Indicators for the detection of thiol groups
02/19/1991US4994495 Fungicides
02/19/1991US4994489 Ester derivatives of diarylacetylenes, their compositions and their use in acne treatment
02/19/1991US4994483 5-substituted-3-aminoalkyl indole derivatives for migraine
02/19/1991CA2023464A1 Butyric acid derivatives
02/19/1991CA1280539C Process and catalyst for production of a bisphenol
02/19/1991CA1280447C Tertiary olefin process
02/19/1991CA1280445C Process for the preparation of perfluoroalkylalkenols
02/19/1991CA1280443C Polyfluoroalkylthiomethyl compounds, process for their preparation and their application as surfactants or precursors thereof
02/19/1991CA1280441C Meta-substituted dioxa-alkane carboxylic acids, esters, amides and salts of diphenyl ethers
02/19/1991CA1280438C Process for the co-production of aromatic carboxylates and alkyl iodides
02/19/1991CA1280437C Process for the co-production of aromatic carboxylates and alkyl iodides
02/19/1991CA1280430C Hydrogenation and reduction using the system hydrocarbon/carbon
02/19/1991CA1280422C Process for the preparation of an n-aromatic-n-acyl urea
02/19/1991CA1280417C Fungicidal acrylates and preparation thereof
02/19/1991CA1280414C Isoprenoidamine derivatives and antiulcer agents
02/19/1991CA1280400C Process for purifying and recovering catalyst solution contaminated during the carbonylation of methyl acetate and/or dimethylether
02/13/1991EP0412623A1 Process for separating 2-chloro-m-xylene
02/13/1991EP0412487A2 Process for the preparation of castanospermine esters
02/13/1991EP0412378A1 Process for producing alpha-keto-carboxylic acid ester
02/13/1991EP0412215A1 Adsorptive separation of para-xylene.
02/12/1991US4992619 Pretreatment with acid catalyst
02/12/1991US4992610 Nickel chloride containing ziepler catalyst
02/12/1991US4992608 Method for preparing cumene
02/12/1991US4992595 Poly(alkoxy ether) mixed formals
02/12/1991US4992593 Partially fluorinated diphenyl ethers, processes for their preparation and their use
02/12/1991US4992592 Fluoromalonaldehyde acetals from reaction of alcohol and acid
02/12/1991US4992588 Acylating o-amino methyl benzyl alkyl ether, reacting, intermediate with hydrohalic acid
02/12/1991US4992586 Dehalogenation of a halonitrobenzene compound
02/12/1991US4992585 Reacting N-methylacetoacetamide with chlorie to produce A-chloro-N-methyl acetoacetamide
02/12/1991US4992582 Koch synthesis from propylene, carbon monoxide and water in presence of hydrogen fluoride under pressure
02/12/1991US4992574 Benzocycloheptene derivatives
02/12/1991US4992547 Aminoaryl ketone photoinitiators
02/12/1991US4992518 Polymers obtained by heating allybicyclo[2.2.1]hept-5-ene-2-carboxylic acid amides for between 6 and 60 hours at 150°-300° C.
02/12/1991US4992504 Ether-containing or thioether-containing 1,3-diketones and the use thereof as stabilizers for chlorine-containing polymers
02/12/1991US4992475 Used for AIDS
02/12/1991US4992474 Phenethanolamine derivatives
02/12/1991US4992469 Method of obtaining an antiplatelet effect
02/12/1991US4992430 Anti-bacterial compositions comprising a substituted bis-(4-aminophenyl)-sulfone and a dihydro-folic acid reductase
02/12/1991US4992416 Isomeric formyl trimethylbicyclo[2.2.2]oct-7-enes
02/12/1991US4992151 Method for the selective alpha halogenation of alkylaromatic compounds
02/12/1991US4992089 Herbicidal compounds, compositions and use
02/12/1991CA1280128C Preparation process of trifluoromethyl iodide