Patents
Patents for C07C 29 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring (31,270)
04/1991
04/23/1991US5010189 Processes for the preparation of 5-amino-4-hydroxy-valeric acid derivatives
04/23/1991US5009783 Curable blend of porous polysulfone support with layer of polyvinyl alcohol and polyacrylic acid
04/18/1991WO1991004958A1 Method for the preparation of hydrolyle or carboxyle compounds with two or three double bonds and more than 5 carbon atoms
04/18/1991WO1991004789A1 Process for producing acid-resistant catalysts for the direct hydration of carboxylic acids into alcohols
04/18/1991DE3933661A1 Catalyst for hydrogenation of acetophenone to methyl benzyl alcohol - made by impregnating silica support with solns. of copper tetr:amine carbonate and ammonium chromate, and drying prod.
04/18/1991DE3933284A1 Electrical energy from solar energy - via methane deforming process and fuel cell
04/17/1991EP0422968A1 Hydrogenation of citral
04/17/1991CA2020532A1 Membrane process for separation of organic liquids
04/16/1991US5008473 Solvent extraction with cyclohexane
04/16/1991US5008408 Heating 4-hydroxy butyraldehyde, catalytic hydrogenation of resulting acetal intermediate
04/16/1991US5008235 Catalysts of Cu-Al-third metal for hydrogenation
04/11/1991DE3942064A1 Verfahren zur herstellung von saeurefesten katalysatoren fuer die direkte hydrierung von carbonsaeuren zu alkoholen Process for the preparation of alcohols to acid-resistant catalysts for the direct hydrogenation of carboxylic acids
04/10/1991EP0421196A1 One-step process for the preparation of alcohols
04/10/1991EP0421034A1 Catalyst for removing peroxide contaminants from tertiary butyl alcohol
04/09/1991US5006576 Ion exchange membrane
04/09/1991US5006508 Preparation of copper alkoxides and sol/gel precursors of superconducting ceramics
04/09/1991CA1282800C Acid catalyzed process
04/04/1991WO1991004242A1 Improved guerbet process
04/03/1991EP0420510A2 Process for the formation of alcohols
04/03/1991EP0420035A1 Two-step process for the preparation of alcohols
04/03/1991EP0419628A1 Process for the production of tertiary alkyl ethers and tertiary alkyl alcohols
04/02/1991US5004862 Using Methane And Steam To Strip The Contaminants
04/02/1991US5004845 Producing alcohol
04/02/1991US5004844 Heating and pressurization of aldehydes and ketones in the presence of a catalyst to form an alcohol
04/02/1991US5004843 Reacting A Vinyl Epoxide With An Organolithium Compound
04/02/1991US5004837 Oxidation of cycloalkane
04/02/1991US5004717 Oxidizing aged catalyst, contacting with an inert gas, cooling and reducing copper oxides in aged catalyst
03/1991
03/27/1991EP0419330A2 Method for the preparation of an alkynyl compound
03/27/1991CN1050144A Cupric silicate catalysts, method of production and uses thereof
03/21/1991WO1991003318A1 Copper silicate catalyst, process for making it and its use
03/21/1991WO1991001980A3 Process for preparing plastics from raw fats and oils
03/21/1991DE3930288A1 Kupfer-silikat-katalysator, sein herstellungsverfahren und seine verwendung Copper silicate catalyst, manufacturing process and its use be
03/20/1991EP0417867A1 Catalysts for the catalysed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters
03/20/1991EP0417825A2 Cymenol preparation by direct dehydrogenation
03/20/1991EP0417407A1 Shaped bodies of macroporous ion exchanger resins and their use
03/20/1991CN1050038A Process of vapour hydrogenation
03/20/1991CN1050014A Process for preparing 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol
03/20/1991CN1012063B Hydroformylation of olefins
03/19/1991US5001284 Process for manufacturing fatty alcohols
03/19/1991US5000926 Catalyst layer-fixed reactor
03/19/1991CA1281743C Process for preparing ethers
03/19/1991CA1281732C Iridium complexes and the use thereof
03/13/1991EP0416744A2 Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol
03/13/1991EP0416683A1 P-cymenol preparation by transfer dehydrogenation
03/13/1991CN1049842A Synthetic method of isoborneol by catalyzing camphenic water with resin
03/12/1991US4999454 Catalysis with iron hydrate compound; reacting chloral with unsaturated hdyrocarbon
03/12/1991US4999133 Process for the production of synthesis gas
03/12/1991US4999090 Distillation in the presence of an alkali
03/06/1991EP0415334A1 Process for separation of enol ethers from mixtures thereof with alcohols
03/06/1991EP0415310A2 Process for the production of tertiary alcohols
03/06/1991EP0415202A2 Method for the production of lower polyhydric alcohols
03/06/1991EP0415190A1 Cycloalkylidene derivatives
03/06/1991EP0414686A1 Derivatives of trifluoromethyl-1-tetralines, preparation and application thereof for the synthesis of compounds having therapeutic properties.
03/05/1991US4997964 Catalysts
03/01/1991CA2024349A1 Process for separating off enol ethers from reaction mixtures containing alcohols
03/01/1991CA2021840A1 Process for the preparation of tertiary alcohols
02/1991
02/28/1991DE3927729A1 Aiding ammonia or methanol prodn. by steam reforming - with energy from fuel cell using oxygen and hydrogen from adsorption system
02/27/1991CN1049493A Hydrogenation of alpha-hydroxy ketones
02/26/1991US4996375 Vitamin E intermediates and a process for their manufacture and conversion into Vitamin E
02/26/1991US4996374 Hydrogenation of acetophenone
02/26/1991US4996324 Reacting secondary alcohol with primary alcohol in presence of basic catalyst
02/26/1991US4996300 Preparation of rare earth alkoxides using catalyst
02/26/1991US4996225 Tri-phenyl alkane derivatives and their oestrogenic, anti-oestrogenic and progestanic uses
02/26/1991US4996158 Optical resolution of racemic alcohols
02/21/1991WO1991001961A1 Process
02/21/1991WO1991001960A1 Process
02/20/1991CN1049300A Agglomerates of malachite crystals and method for their preparation
02/19/1991US4994625 Production of hydrogen peroxide
02/19/1991US4994568 6- and 4-substituted-1-azabicyclo(3.2.0)heptan-3, 7-dione-2-carboxylates
02/19/1991US4994498 Mixture also containing molybdenum sulfide and alkali metal compounds
02/19/1991US4994152 Cyclohexanone, methylcyclohexanone and high boiling by-product
02/19/1991US4994093 Partial oxidation, gasification of fuel dusts, purification, efficiency
02/19/1991CA1280446C Method of preparing methanol
02/19/1991CA1280445C Process for the preparation of perfluoroalkylalkenols
02/14/1991DE4024364A1 Verfahren zur herstellung von kunststoffen aus rohen fetten und oelen Process for the manufacture of plastics raw fat and grease the
02/13/1991EP0412596A1 Process for oxidising paraffinic compounds
02/13/1991EP0412415A1 Palladium catalysts
02/13/1991EP0412337A2 Method for the production of 1,3-propandiol
02/12/1991US4992609 Telomerization catalysts
02/12/1991US4992602 Catalytic decomposition of tert-butyl hydroperoxide in presence of metal phthalocyanine catalyst
02/12/1991US4992566 Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol
02/12/1991US4992480 Mixture of metal carbonyl and alkoxide
02/12/1991US4992479 Process for the preparation of methanol and composition suitable for use as a catalyst in said process
02/12/1991US4992454 Antifungal 1,3-bis (1H-1,2,4-triazol-1-yl)-2-aryl butan-2-ols and derivatives thereof
02/12/1991US4992176 Dehydration of organic oxygenates
02/10/1991WO1991001980A2 Process for preparing plastics from raw fats and oils
02/10/1991CA2038936A1 Method of producing plastics from crude fats and oils
02/06/1991EP0411780A2 Continuous process for the recovery of betaine
02/06/1991EP0411410A2 Process for the preparation of octadienols
02/06/1991EP0411202A1 Cosmetic composition
02/05/1991US4990698 Method for producing alkadienols
02/05/1991US4990697 Process for producing homoallyl alcohols
02/05/1991US4990696 Oxychlorinationof perchloroethylene to form hexachloroethane which is reacted with methane to produce methyl chloride, hydrolysis
02/05/1991US4990695 Process for purifying crude glycerol
02/05/1991US4990694 Optically active dimethyl heptanediols
02/05/1991US4990692 Extraction from an aqueous solutio of aromatic sulfonic acid using cyclohexyl ethers
02/05/1991US4990690 Process for preparing aromatic polyhydric alcohol
02/05/1991US4990689 2,4-bis(2-hydroxyhexafluoro-2-propyl)fluorobenzene and method of preparing same
02/05/1991US4990688 Removal of cyclohexanol
02/05/1991US4990677 Fungicidal and plant growth-regulating azolylmethyl-cyclopropyl derivatives