Patents
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Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
06/1990
06/26/1990CA1270831A1 Halogeno biphenyl primary alcohols derivatives useful in the therapeutical treatment of atherosclerosis
06/26/1990CA1270824A1 Substituted benzylhydroxylamines and their use as stabilizers
06/26/1990CA1270819A1 Compounds and assay for tricyclic antidepressants
06/26/1990CA1270817A1 Hydroxy-substituted cyanoformazans and their use in analytical compositions and methods
06/26/1990CA1270766A1 Cosmetic compositions containing as active ingredient at least one bicyclic naphtoic compound
06/24/1990CA2006434A1 Process for the improved production of (meth) acrylic acid esters of polyhydric alcohols (ii)
06/24/1990CA2006433A1 Process for the improved production of (meth) acrylic acid esters of polyhydric alcohols (i)
06/24/1990CA2006432A1 Process for the improved production of (meth) acrylic acid esters of polyhydric alcohols (iv)
06/24/1990CA2006431A1 Process for the improved production of (meth) acrylic acid esters of polyhydric alcohols (iii)
06/24/1990CA2006430A1 Process for neutralization of organic fluids
06/22/1990CA2004707A1 Low pressure rhodium catalyzed hydroformylation of olefins
06/21/1990CA2005993A1 Process for the production of 3,5,6-trihydroxyhexanoic acid derivative
06/20/1990EP0373959A2 Preparation of aromatic esters
06/20/1990EP0373852A2 Compounds
06/20/1990EP0373488A2 Organic derivatives of rhenium oxides, their preparation and their use in the metathesis of olefins
06/20/1990EP0373186A1 Derivatives of 2,3-difluorohydroquinone
06/20/1990EP0225826B1 Fluorinated acrylic monomers, their polymers and their use as hydrophobic and oleophobic agents
06/20/1990CN1008441B Method for eliminating reentry disulfides in mercaptan extraction
06/19/1990US4935564 Process for preparing alkyl halides
06/19/1990US4935562 Method for producing 4,4'-dibromobiphenyl
06/19/1990US4935556 Using copper(ii)chromite spinel catalyst containing silica
06/19/1990US4935553 Process for preparing bisphenol A
06/19/1990US4935551 To m-diisoprpoylbenzene dihydroperoxide
06/19/1990US4935549 Process for producing acetic acid
06/19/1990US4935532 Hemiacetals
06/19/1990US4935522 Process for producing ethyl 2-[4'-(6"-chloro-2"-benzoxazolyloxy)phenoxy]propionate
06/19/1990US4935486 Process for the production of modified polyisocyanates, the polyisocyanates obtainable by this process and their use as binders or as a binder component
06/19/1990US4935449 N-2,3-butadienyl tri- and tetraaminoalkane derivatives
06/19/1990US4935446 Prostaglandin analogues, process for their preparation and pharmaceutical compositions containing them
06/19/1990US4935444 Esterified ephedrine drivatives with prolonged antiulcer activity
06/19/1990US4935439 Antiviral compositions derived from marine sponge epipolasis reiswigi and their methods of use
06/19/1990US4935409 Aminophenylethylamine yield promoters
06/19/1990US4935398 Process for the production of methanol and a composition suitable for use as a catalyst in said process
06/19/1990US4935240 Benzoylaminophenoxybutanoic acid derivatives
06/19/1990US4935216 Zinc-aluminum-phosphorus-silicon-oxide molecular sieve compositions
06/19/1990US4935052 Herbicidal crontonic acid derivatives, their preparation and compositions containing them
06/19/1990US4934519 Process for working up crude liquid vinyl acetate
06/19/1990CA1270496A1 Process for the reducing fouling in higher olefin plants
06/19/1990CA1270495A1 Preparation of nonionic surfactants
06/19/1990CA1270492A1 Quinodimethane compositions
06/19/1990CA1270476A1 Preparation of spherical magnesium alkoxide particles
06/14/1990WO1990006296A1 Direct fluorination process for making perfluorinated organic substances
06/14/1990WO1990006295A1 Preparation of biaryl compounds
06/14/1990WO1990006046A2 Method for purifying a crude dimethyl naphthalene dicarboxylate
06/13/1990EP0372847A2 Ester production by hydrogenation of carboxylic acids and anhydrides
06/13/1990EP0372683A2 Dehydration of organic oxygenates
06/13/1990EP0372385A2 Naphthalene carboxylic acids, their preparation and application as medicaments
06/13/1990EP0233229B1 Preparation of an allyl amine and quaternary diallyl ammonium compounds therefrom
06/13/1990DE3940196A1 Organo-rhenium oxide cpds. - useful on oxide support materials, as catalysts for metathesis of olefin(s), esp. functional olefin(s)
06/13/1990CN1042898A Process and appliance for hydrocarbons conversion
06/13/1990CN1042897A Alkylation of polycyclic aromatic compounds to alkylates enriched in para-substituted isomers
06/13/1990CN1008368B Vitamin d3 derivatives having a substituent at 2-position
06/13/1990CN1008366B Modified 8-ring zeolites as catalysts for conversion of methanol and ammonia to dimethylamine
06/13/1990CA2004706A1 Compounds
06/12/1990US4933511 Organometallic catalysts
06/12/1990US4933510 Propanol derivatives
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
06/12/1990US4933501 Process for the preparation of terpene peroxides and peroxides thus obtained
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
06/12/1990US4933494 Heating with activated carbon and hydrotalcite in mixed solvent, filtering, cooling filtrate, and precipitation
06/12/1990US4933489 Process for the manufacture of 6-chloro-1,4-diacetoxy-2,3-dimethoxynaphthalene
06/12/1990US4933487 Preparation of 4-pentenates
06/12/1990US4933482 Hydrogenation of beta-keto acid in presence of ruthenium phosphine complex
06/12/1990US4933477 Preparation of phenyl-substituted epoxides
06/12/1990US4933473 Process for producing neopentyl glycol
06/12/1990US4933449 Preparing 3-(4 chlorophenyl)-3-(3,4-dimethoxyphenyl) acrylic acid morpholide in the presence of potassium tert-butylate
06/12/1990US4933367 Carboxylic acid derivatives, processes for the preparation thereof, the use thereof, and pharmaceutical compositions which contain these compounds
06/12/1990US4933346 Diarylalkyl piperazine derivatives, a process for their preparation, their use, and medicaments containing them
06/12/1990US4933329 Bis-S-alkylbenzene derivatives
06/12/1990US4933001 Phenylalkenylcarboxylic acids and their esters
06/12/1990CA2004700A1 Method for functionalization of nucleophiles
06/12/1990CA1270263A1 Purification of (hydrocarbylthio) aromatic amines
06/12/1990CA1270262A1 Process for the preparation of dinitroalkylbenzenes
06/12/1990CA1270257A1 High performance nonlinear optical substrates
06/12/1990CA1270256A1 5-arylalkyl-4-alkoxy-2(5h)-furanones, intermediates and processes for the preparation thereof and medicaments containing them
06/12/1990CA1270252A1 Allylbicyclo[2.2.1]hept-5-ene-2-carboxylic acids and derivatives thereof
06/12/1990CA1270251A1 2-(heteroalkyl)-1,4-dihydropyridines, process for their preparation and pharmaceutical compositions containing them
06/12/1990CA1270240A1 Process for up-grading steam-cracking products
06/12/1990CA1270203A1 Perfumery compounds and their preparations
06/08/1990CA2004696A1 Naphthalene carboxylic acids
06/07/1990CA2004753A1 Ester production by hydrogenation of carboxylic acids and anhydrides
06/06/1990EP0371748A2 Inhibition of polymerization during distillation of monomers
06/06/1990EP0371484A2 A process for preparing a naphthalene derivative
06/06/1990EP0283943B1 Process and means for combating the coffee leaf miner, especially perileucoptera coffeella
06/06/1990EP0275451B1 Polymeric emulsifiers based on amine-terminated i-oligomers
06/05/1990US4931595 Catalytic hydrolysis process for polyamines
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
06/05/1990US4931589 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them
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
06/05/1990US4931579 Indicators for the detection of thiol groups
06/05/1990US4931570 Process for the production of 4-alkoxy-2(5H) thiophenones
06/05/1990US4931549 Process for aryl-quinone and aryl-naphthoquinone diazide sulfonic acids
06/05/1990US4931525 Optical active (meth)acrylamides and polymers thereof for racemate resolution
06/05/1990US4931474 Ether derivative and an acaricidal or insecticidal composition comprising said derivative
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