Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
05/1991
05/14/1991CA2029746A1 Process for the carbonylation of allylic butenols, and butenol esters
05/14/1991CA1284166C Electric machine with a closed cooling loop
05/14/1991CA1284153C Preparation of alkyl trifluroacetoacetate
05/14/1991CA1284148C Quaternized aminoamide-modified waxes
05/08/1991EP0426474A1 Chiral organometallic complexes and uses thereof
05/08/1991EP0426333A2 Acetic acid derivatives and their production
05/08/1991EP0425930A2 Process for the preparation of symmetrical diarylacetylenes
05/08/1991EP0425740A1 Adsorptive separation of para-xylene
05/08/1991EP0425666A1 Process for producing methacrylic acid and methacrolein
05/08/1991EP0425538A1 TaX5 CATALYZED HYDROFLUORINATION OF HALOGENATED ALKANES.
05/08/1991CN1012576B Process for preparing carboxanilides compounds
05/08/1991CN1012575B Preparation of alkanoyl anilides
05/07/1991US5013758 Hypotensive, anticoagulant, bronchodilator
05/07/1991US5013756 Catechol derivatives, a process of preparation thereof, and therapeutical compositions containing the same
05/07/1991US5013754 Synthetic pyrethroid
05/07/1991US5013723 New thymopentin retro-inverso analogs and fragments thereof, a process of preparation of the new compounds and the intermediates obtained therein
05/07/1991US5013537 Process for the synthesis of zeolites of the ferrisilicate type, products so obtained
05/07/1991US5013477 Alkenylbicyclohexane liquid crystals
05/07/1991US5013476 Ferroelectric properties, electro-optical indicating device
05/07/1991US5013472 Hydraulic fluids and oils, endcapped perhaloalkyl oxyfluoride
05/07/1991US5013443 Extraction and separation method and apparatus using supercritical fluid
05/07/1991CA1283929C Oligomerization of ethylene in methanol and water
05/07/1991CA1283926C Process for making 1,3-dioxane derivatives
05/07/1991CA1283921C2 Optically active pyrrolidinedione and pyrrolidinone derivatives
05/07/1991CA1283918C Carboxanilides
05/07/1991CA1283917C Amino acid derivatives having anti-tumor activity and compositions containing them
05/07/1991CA1283907C Self-and diol reactive formaldehyde-free crosslinking monomers and their derived polymers
05/03/1991WO1991006550A1 Chiral organometallic complexes and uses thereof
05/03/1991CA2044144A1 Chiral organometallic complexes and uses thereof
05/02/1991WO1991003456A3 Process for preparing salt-free esters of fatty acids with oligoglycerins or with addition reaction products of ethylene oxide and/or propylene oxide with oligoglycerins
05/02/1991EP0424861A2 Process for the continuous preparation of esters of lower carboxylic acid with lower alcohols
05/02/1991EP0424767A2 Decanol mixtures and mixtures of didecylesters obtained from them and their use as plastifiers
05/02/1991EP0424531A1 Process for producing 1,1-dichloro-2,2,2-trifluoroethane
05/01/1991CN1051035A Process for preparing vinylacetate
05/01/1991CN1050994A Improved aldehyde hydrogenation catalyst and process
05/01/1991CN1012499B Compounds related to antibiotic tan-749 and their production
05/01/1991CN1012498B Process for n-(2'amino phenyl)-benzamide derivative and its drug composition
05/01/1991CN1012497B Method for starting and stopping acrylamide reactor
05/01/1991CN1012496B Method for production of oxydicarboxylic acid salts
05/01/1991CA2027375A1 Acetic acid derivatives and their production
04/1991
04/30/1991US5012023 Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
04/30/1991US5012022 Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
04/30/1991US5012018 Polyprenyl composition of compounds and process for the production thereof
04/30/1991US5011997 Process for bis(4-aminophenyl)hexafluoropropane
04/30/1991US5011996 Process for the preparation of amines
04/30/1991US5011995 Hydrogenation of N-Aliphatic Keimines Using A Complex Iridium Catalyst
04/30/1991US5011994 Colorless ketimines their preparation and their use as cross-linking agent
04/30/1991US5011983 Preparation and reactions of omega-halosulfonyl perfluoroalkanesulfonates
04/30/1991US5011980 Process for preparation of allyl acetate
04/30/1991US5011979 Process for preparing methacrylates of fluorinated alcohols
04/30/1991US5011977 Transesterification of alkoxyesters
04/30/1991US5011974 Process for the preparation of derivative of 2-diethylamino-1-methylethyl-1-hydroxy-(bicyclohexyl)-2-carboxylate
04/30/1991US5011973 Reacting A Trimethylammonium Salt With A Naphthalenedisulfonic Acid; Useful For Enhancing The Digestive Function
04/30/1991US5011972 Crosslinked polyester molding materials
04/30/1991US5011944 Electrochromism; intermediates for substituted napthquinones and tetrathiotetracenes
04/30/1991CA1283665C Method for producing p-alkylstyrene
04/30/1991CA1283662C Benzoyl-ureas exerting an insecticide activity
04/30/1991CA1283648C Zeolite ssz-25
04/30/1991CA1283647C Layered silicates and their synthesis
04/30/1991CA1283646C Layered metal oxides containing interlayer oxides and their synthesis
04/30/1991CA1283607C Stable injectable pharmaceutical formulation for 1,4- dihydroxy-5-8-bis¬2-(2-hydroxyethylamino)-ethylamino| anthraquinone, dihydrochloride
04/30/1991CA1283599C Process and facility for the recovery of the heavier hydrocarbons of a gas mixture
04/28/1991WO1991006538A1 Substituted benzoylbenzene-, biphenyl- and 2-oxazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase
04/28/1991WO1991006537A2 Substituted indole-, indene-, pyranoindole- and tetrahydrocarbazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase
04/28/1991CA2070422A1 Substituted indole-, indene-, pyranoindole and tetrahydrocarbazole- alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase
04/28/1991CA2067138A1 Substituted benzoylbenzene-, biphenyl-and 2-oxazole-alkanoic acid derivatives as inhibitors of pla2 and lipoxygenase
04/25/1991DE3934860A1 Hydrocarbonylation of methyl acetate to ethylidene di:acetate - using catalyst contg. rhodium cpd. palladium cpd., ether-phosphane ligand and alkali(ne earth) iodide to give high selectivity
04/24/1991EP0424252A1 Catalytic composition comprising titanium and phosphorus, preparation and use thereof for the condensation of an epoxyde with carboxylic acid anhydride
04/24/1991EP0424066A2 Polyol polyester synthesis
04/24/1991EP0423658A2 Process for isolating vinyl acetate
04/24/1991EP0423127A1 Novel photoactive compounds, processes for their production and intermediates therefor
04/24/1991EP0252947B1 Methylene linked aromatic pour point depressant
04/24/1991CN1012433B Improvements in or relating to leukotriene antagonists
04/23/1991US5010189 Processes for the preparation of 5-amino-4-hydroxy-valeric acid derivatives
04/23/1991US5010048 Zeolite containing fluoride
04/23/1991US5009702 Cyclohexenone compounds and use as herbicides or as plant growth regulators
04/23/1991CA1283499C Peptides
04/23/1991CA1283424C Process for the preparation of 5-fluorotoluene-2,4- disulphochloride
04/23/1991CA1283423C Process for the preparation of alkylidene diesters
04/23/1991CA1283422C Hydroxyvitamin d _compounds and process for preparing same
04/23/1991CA1283419C Substituted di-t-butylphenols
04/23/1991CA1283410C Anthraquinoylcarboxylic acid hydrazides, curable compositions and use thereof
04/23/1991CA1283409C2 Process and intermediates for making 16-phenoxy- and 16-substituted phenoxy-prostatrienoic acid derivatives and their stereoisomers
04/23/1991CA1283408C2 Processes and intermediates for making 16-phenoxy- and 16-substituted phenoxy-prostatrienoic acid derivatives and their steroisomers
04/22/1991WO1991005759A1 Process for manufacturing reaction mixtures containing ester polyols
04/22/1991CA2069893A1 Process for the production of reaction mixtures containing ester polyols
04/18/1991WO1991005034A1 Continuous process for producing lower alkyl esters
04/18/1991WO1991004959A1 Process for preparing polymeric dispersants having alternating polyalkylene aud succinic groups
04/18/1991DE3932514A1 Kontinuierliches verfahren zum herstellen niederer alkylester A continuous process for producing lower alkyl ester
04/18/1991CA2027887A1 Catalytic composition comprising titanium and phosphores, its preparation and its use to condense an epoxide on a carboxylic acid anhydride
04/17/1991EP0423070A2 Process for preparing substituted phenols
04/17/1991EP0422768A1 Optically active monoester compounds and producing same
04/17/1991EP0422597A2 Derivatives of phenylacetic acid and fungicides containing them
04/17/1991EP0422235A1 PRODUCTION OF alpha-(3-BENZOYLPHENYL)PROPIONIC ACID DERIVATIVE
04/17/1991EP0422098A1 Carbonylation process for preparation of aromatic carboxylic esters and an alkyl iodide
04/16/1991US5008473 Solvent extraction with cyclohexane
04/16/1991US5008471 Process for the preparation of rooperol
04/16/1991US5008465 Preparing ether by heating alcohol with olefin
04/16/1991US5008447 Process for the preparation of polyurethanes with liquid crystal properties and diisocyanates suitable for carrying out the process
04/16/1991US5008446 Preparation of phenoxy-substituted esters and intermediates therefor