Patents
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Patents for C07B 61 - Other general methods (69,072)
10/1990
10/03/1990EP0389961A1 Monomerides containing the hexafluoroisopropyl group, process for their preparation and their use
10/03/1990EP0389836A1 Process for the purification and recovery of contaminated solution of a catalyst from the carbonylation of methanol and/or methyl acetate and/or dimethyl ether
10/03/1990EP0389617A1 Treatment of rhodium catalysts.
10/03/1990EP0389530A1 New catalysts based on zeolites modified by alkaline elements in metallic form, their preparation and their application to the alkylation of alkyl aromatic derivatives.
10/03/1990EP0253836B1 Preparation of fluoroaromatic compounds in dispersion of potassium fluoride
10/03/1990CN1045790A Synthesis of sucrose polyester
10/03/1990CN1045772A 2-halogencyclopropylethane derivates, processes of preparation and use as pesticide thereof
10/03/1990CN1009829B Process for preparation of silver-contg. catalyst
10/03/1990CN1009828B Process for preparation of silver-contg. catalyst
10/03/1990CN1009827B Process for preparation of silver-contg. catalyst
10/03/1990CN1009802B Stabilized magnesia and its use in catalytic processes
10/02/1990US4960959 In presence of aqueous potassium hydroxide and alkyl-t-butyl ether solvent
10/02/1990US4960949 Low pressure rhodium catalyzed hydroformylation of olefins
10/02/1990US4960943 Process for the preparation of phenylketones etherified in the 4-position
10/02/1990US4960941 Hydrogenation of aromatic amines to produce their ring hydrogenated counterparts
10/02/1990US4960940 Chemical intermediates for fiber-reactive dyes
10/02/1990US4960939 Catalytic reaction of benzaldehyde and ch2o with 3,4-di-methoxyphenethylamine; intermediate for ibopamine
10/02/1990US4960934 Increasing reaction rate by adding promoter ammonium carbamate, ammonium carbonate or ammonium bicarbonate or mixtures
10/02/1990US4960927 Ester interchanging
10/02/1990US4960926 Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
10/02/1990US4960919 Catalytic cleavaging 2-acetoxyethyl phosphinic acid
10/02/1990US4960914 Method for the preparation of naphthoquinone
10/02/1990US4960913 Process for the preparation of pharmaceutical compositions
10/02/1990US4960904 Chemical intermediates for hydroxyalkylation
10/02/1990US4960887 Process for the preparation of pyrimidines
10/02/1990US4960583 Oxide having a trivalent metal or monovalent metal or any mixture of them
10/02/1990CA1274853A1 Production of aromatics from ethane and/or ethylene
10/02/1990CA1274837A1 Process for converting octamethylcyclotetrasiloxane to decamethylcyclopentasiloxane
10/02/1990CA1274836A1 Method for silalactone preparation and use
10/02/1990CA1274827A1 PREPARATION OF .epsilon.-CAPROLACTAM
10/02/1990CA1274826A1 PRODUCTION OF .epsilon.-CAPROLACTAM
09/1990
09/30/1990CA2013523A1 Resolution of a carboxylic acid
09/29/1990CA2013289A1 Purified hydroxy-functional polyether compounds
09/28/1990CA2013142A1 Method for obtaining heavy metal carbides with high specific surface
09/28/1990CA2013114A1 Bronchospasmolytic compounds and process for their preparation
09/26/1990EP0389389A1 Selective epoxidation of bicyclic olefins
09/26/1990EP0389255A1 Process for producing molybdenum bismuth-containing metal oxide catalyst
09/26/1990EP0389119A2 Halogen resistant hydrotreating process and catalyst
09/26/1990EP0388870A1 Process for preparing aliphatic substituted fluorobenzenes
09/26/1990EP0388698A1 Mould release agent for polyester carbonates
09/26/1990EP0383793A4 Process to produce aromatics of low acid-wash color
09/26/1990EP0370083A4 Seal for rotatable shaft
09/26/1990EP0330036B1 Process for the preparation of p-hydroxy-benzaldehydes
09/25/1990US4959502 Catalysts and their use in the hydrolysis of nitriles
09/25/1990US4959501 Process for the preparation of 2-(2-chloroethoxy)-benzenesulfonamide
09/25/1990US4959498 Process for the preparation of monocarboxylic anhydrides
09/25/1990US4959496 Chemical process
09/25/1990US4959491 Detergent grade olefins, alkylbenzenes and alkylbenzene sulfonates and processes for preparing
09/25/1990US4959467 Control of product selectivity in the addition of HCN to arabinose
09/25/1990CA2012918A1 Hexafluoroisopropyl-containing monomers, process for their preparation and their use
09/25/1990CA1274546A1 Process for production of methyl isobutyl ketone
09/25/1990CA1274544A1 Process for the selective hydrogenation of unsaturated compounds
09/25/1990CA1274540A1 Functionalized perfluoropolyethers and process for the preparation thereof
09/25/1990CA1274539A1 Carbonylation process for the production of aromatic acids
09/25/1990CA1274538A1 Preparation of carboxylic di-esters or acids
09/25/1990CA1274536A1 Enol ethers and a process for their preparation and o-pyrones and a process for their preparation and the use thereof
09/25/1990CA1274535A1 Method for producing alkenylthiophenols and their esters
09/25/1990CA1274534A1 Cyclic amide additives for preparation of organic carbonates
09/24/1990WO1990011267A1 Novel integrated separation method for di-isopropyl ether and methyl tertiary alkyl ether processes
09/24/1990CA2027574A1 Integrated separation method for di-isopropyl ether and methyl tertiary alkyl ether processes
09/24/1990CA2012980A1 Process for the preparation of phenylpyruvic acid from benzyl chloride
09/22/1990CA2011002A1 Preparation of aliphatically substituted fluorobenzenes
09/21/1990WO1990011279A1 Selective epoxidation of bicyclic olefins
09/21/1990WO1990011268A1 Process for the production of tertiary alkyl ethers and tertiary alkyl alcohols
09/21/1990WO1990011266A1 Process for the production of alkyl aromatic hydrocarbons
09/21/1990CA2045396A1 Selective epoxidation of bicyclic olefins
09/21/1990CA2028135A1 Process for the production of tertiary alkyl ethers and tertiary alkyl alcohols
09/21/1990CA2027573A1 Process for the production of alkyl aromatic hydrocarbons
09/19/1990EP0388322A1 Preparation of 4-substituted aryl olefins
09/19/1990EP0388114A2 Process for production of 1,2,2,2,- Tetrafluoro-ethyl difluoromethyl ether
09/19/1990EP0388064A2 Method of predetermining amounts of reactants for a desired product
09/19/1990EP0388045A1 Secondary alkyl amine derivatives of ethylenediamine
09/19/1990EP0387974A2 Derivatives of 2-halogen cyclopropyl ethane, method for their preparation and their use as pesticides
09/19/1990EP0387820A2 Process for the preparation of 2,3,5-trimethyl-p-benzoquinone
09/19/1990EP0387807A1 Method for chemically modifying a metal complex
09/19/1990EP0387674A2 Process for the continuous preparation of an anhydrous mixture of methyl acetate and methanol
09/19/1990EP0387654A2 Methods of producing alkylene glycol monosorbates
09/19/1990EP0387612A2 Process for the preparation of beta-hydroxyketones
09/19/1990EP0387531A1 Process for the preparation of beta-chloroethyl sulfonyl aryl isocyanates
09/19/1990EP0387502A1 Process for recovering catalyst for use in preparing 1-(4-isobutylphenyl) propionic acid
09/19/1990EP0387448A2 Photochemical conversion of cephalosporins, 1-carba(dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins
09/19/1990EP0387433A1 (Bis(diaminopolyalkoxy)-N-alkylamines by amination of hydroxyl-containing tertiary amines
09/19/1990EP0337839B1 Process for the preparation of lower dialkyldisulfides
09/19/1990EP0223151B1 Process for the selective hydrogenation of unsaturated compounds
09/18/1990US4958042 Dimerization of acrylonitrile
09/18/1990US4958040 Process for the preparation of diorganohalogenosilanes
09/18/1990US4958033 Process for preparing alcohols
09/18/1990US4958018 Reacting a 3-halomethyl-3-cephem with a lead reducing agent
09/18/1990US4957608 Bromination of 8-methyl compound, light, buffers, oxidation to 8-carboxylic acid
09/18/1990US4957607 Method for the preparation of a cycloalkyl silane compound
09/18/1990CA1274254A1 Production of high (z,z) content 1,5,9- tetradecatriene
09/18/1990CA1274251A1 Process for the hydrocarboxylation of acetylenically unsaturated compounds
09/18/1990CA1274248A1 METHOD OF PREPARING .alpha.-ARYLALKANOIC ESTERS
09/18/1990CA1274246A1 Preparation of 9-alkenyl ester compounds
09/15/1990CA2012160A1 2-halocyclopropylethane derivatives, processing for their preparation and their use as pesticides
09/15/1990CA2005166A1 Photochemical conversion of cephalosporins 1-carba(1-dethia)cephalosporins and 1-oxa(1-dethia)cephalosporins
09/14/1990CA2010603A1 Halogen resistant hydrotreating process and catalyst
09/13/1990CA2011931A1 Method of predetermining amounts of reactants for a desired product
09/13/1990CA2006340A1 Process for the preparation of .beta.-hydroxyketones
09/12/1990EP0387119A2 Process for the condensation of at least one epoxide with at least one cyclic anhydride in the presence of a catalyst based on at least one nitrogen containing titanium complex
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