Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
08/1995
08/29/1995US5446197 Dissolving in 1,2-dichlorobenzene solvent, recrystallization
08/29/1995CA2143508A1 Energy conservation during plural stage distillation
08/29/1995CA2143407A1 Process for recovering dipropylene glycol tert-butyl ethers
08/24/1995DE4405622A1 Reprocessing hydraulic fluids contg. glycol ether borate(s)
08/23/1995EP0630361A4 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin d and analogues.
08/23/1995CN1107134A Method for producing tertether with C4 or C5, including two obtaining-distillating steps
08/22/1995US5444170 Using cocatalyst system comprising palladium and platinum; prevents catalyst poisoning
08/22/1995US5444168 Process for the production of symmetrical ethers from secondary alcohols
08/17/1995DE4404515A1 Acetaldehyde di:ethyl acetal prodn. from acetaldehyde and ethanol
08/16/1995EP0667329A1 Integrated process for the simultaneous production of alkyl tert-butyl ethers and 1-butene
08/15/1995US5442040 Using activated carbon adsorber
08/12/1995CA2141767A1 Integrated process for the simultaneous production of alkyl tert-butyl ethers and 1-butene
08/10/1995WO1995021210A1 Polyglycerol production
08/10/1995WO1995021144A1 Process for producing 3-aryl propines and novel 3-aryl propines
08/10/1995CA2182292A1 Process for producing 3-aryl propines and novel 3-aryl propines
08/10/1995CA2180432A1 Polyglycerol production
08/09/1995EP0665836A1 Bifunctional intermediates for use in the manufacture of liquid crystals
08/09/1995EP0507770B1 Process for preparing an ether
08/09/1995EP0462283B1 Process for producing dipentaerythritol
08/09/1995CN1106375A Synthetic process of triethyl orthoformate
08/09/1995CN1029478C Prepn. of aromatic ester or aromatic ether
08/08/1995US5440066 Process for splitting polycarbonates
08/08/1995US5440051 Halogenating by metering into reaction vessel at the same time as chlorine in presence of solvent or absence of solvent to form a chemical intermediates for fungicides or insecticides
08/03/1995WO1995020565A1 Process for the separation of glycols from dimethyl terephthalate
08/03/1995WO1995020563A1 New leukotriene b4 derivatives, methods of preparing them and their use as drugs
08/03/1995DE4402915A1 Verfahren zur Herstellung von 3-Aryl-propinen A process for the preparation of 3-aryl-propinen
08/02/1995EP0665207A1 Isopropyl alcohol and ether production from acetone
08/02/1995EP0665206A1 Alkoxylation process
08/02/1995EP0664778A1 Method for controlling catalytic distillation etherifications
08/02/1995EP0664732A1 Support catalyst and use of same
08/02/1995CN1105974A Preparation method of anisole
08/02/1995CN1105969A Preparation of alkoxylates
07/1995
07/29/1995CA2141270A1 Isopropyl alcohol and ether production from crude by-product acetone
07/26/1995EP0489097B1 Method for preparing ether carboxylic acids from carbohydrates and their derivatives
07/25/1995US5436376 Production of tertiary butyl alcohol
07/20/1995WO1995019334A1 PROCESS FOR PRODUCING n-BUTYRALDEHYDE AND/OR n-BUTANOL
07/20/1995WO1995019222A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
07/20/1995DE4400837A1 Verfahren zur Herstellung von n-Butyraldehyd und/oder n-Butanol A process for the preparation of n-butyraldehyde and / or n-butanol
07/20/1995CA2180982A1 Process for producing n-butyraldehyde and/or n-butanol
07/19/1995EP0663380A1 Alkyl t-alkyl ether synthesis using modified beta-zeolite catalyst
07/19/1995EP0663379A1 Process for the production of substituted aromatic hydrocarbons from corresponding anilines by dediazoniation
07/18/1995US5434327 Catalysis with zeolite zsm-23
07/18/1995US5434315 Ultrafiltration of polyoxybutylene glycol
07/18/1995US5434180 Skin disorders; retinoid activity; rheumatoid psoriasis;
07/13/1995DE19500479A1 Hydrogenation of acetylenic glycols and their ethoxylation prods.
07/13/1995CA2139989A1 One-step synthesis of methyl t-butyl ether from t-butanol using beta-zeolite catalysts modified with lithium plus rare earths
07/12/1995CN1105011A Cyclohexanone derivative, cold sensitive agent and cold sensitive composition containing same and preparation of same and intermediate
07/12/1995CN1104932A Catalyst for alkoxylation reaction and method for producing alkoxy compound
07/12/1995CN1104930A Fluorination in tubular reactor system
07/11/1995US5431888 Multi-purpose catalytic distillation column
07/11/1995US5431822 Process for the chromatographic separation of a mixture of polyglycerols
07/05/1995EP0661257A1 Isopropyl t-butyl ether generation from crude acetone
07/05/1995EP0661256A1 Process for the preparation of methyl tertio-butyl ether
07/05/1995EP0660815A1 Pesticidal fluoroolefins.
07/05/1995EP0571506B1 Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a modified fluorinated resin catalyst containing sulfonic acid groups
07/05/1995EP0477359B1 Synthesis of cyclitols from substituted arene diols
07/04/1995US5430198 Diisopropyl ehter/MTBE cogeneration from crude by-product acetone
07/04/1995US5430197 Recovery of alcohol from hydrocarbon streams
07/04/1995US5430191 Assymetric hydrogenation catalysts, enantioselective hydrogen displacement
07/01/1995CA2139295A1 Isopropyl t-butyl ether (iptbe) generation from grude acetone
06/1995
06/29/1995WO1995017367A1 2-methylbutoxy ethoxyethanol
06/29/1995WO1995017248A1 Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst
06/28/1995EP0659724A1 Neutralisation of crude ether effluent streams
06/28/1995EP0659723A1 Process for the preparation of hydrocarbon mixtures containing alkyl tert-alkyl ethers
06/28/1995EP0659722A1 Process for the preparation of methyl tertiary butyl ether
06/28/1995EP0561779B1 Process for producing 1-octene
06/28/1995CN1029123C Process for preparation of insecticidal cyclopropyl-substituted di(aryl) compounds
06/24/1995CA2138911A1 Neutralization of crude mtbe effluent streams using solid bases
06/22/1995WO1995016724A1 Process for purifying polyols
06/22/1995WO1995016723A1 Polyglycerol production
06/22/1995WO1995016649A1 Fluorination process
06/22/1995CA2175191A1 Process for purifying polyols
06/22/1995CA2131401A1 Methyl tertiary butyl ether process
06/22/1995CA2131399A1 Methyl tertiary butyl ether process
06/21/1995EP0658155A1 Process for converting acetals to ethers
06/21/1995EP0555246B1 Hydrophobised double-layer hydroxide compounds
06/21/1995EP0513142B1 Hydroxy containing fluorovinyl compounds and polymers thereof
06/21/1995CN1103815A Multi-purpose catalytic distillation column and etherification process using same
06/20/1995US5426247 Condensation of cyclogeranl sulfone, halogenation, removing sulfone and halogn, deacetalization, isomerization
06/20/1995US5426222 Method for the preparation of iodonium salts
06/20/1995US5426165 Thermoplastic fluorocopolymers and the fluoromonomers used for their preparation
06/20/1995CA1336002C Liquid phase fluorination
06/14/1995EP0657411A1 Improved synthesis of bisindolylmaleimides
06/14/1995EP0657410A1 Process for the preparation of alkoxylates using ester compounds as catalysts
06/14/1995EP0656877A1 Process and device for preparing diglycerine.
06/13/1995US5424458 Diverting isobutane from regular dehydrogention zone to oxidation zone, feeding propane through dehydrogenation, epoxidation, forming propylene oxide
06/12/1995EP0664778A4 Method for controlling catalytic distillation etherifications.
06/08/1995WO1995015302A1 Process for conversion of crude hydrocarbon mixtures
06/08/1995CA2137422A1 Process for the preparation of alkoxylates using ester compounds as catalyst
06/08/1995CA2137205A1 Synthesis of bisindolylmaleimides
06/07/1995CN1028749C Alkylating aromatic compounds
06/06/1995US5422038 Optically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same
06/06/1995US5422035 Benzene derivatives, and liquid-crystalline medium
06/01/1995DE4340749A1 Prepn. of tri:phenylene cpds. in high yield
05/1995
05/30/1995US5420364 Process for the preparation of halogenated aromatic compounds
05/30/1995US5420360 Process for the conversion of C5 linear olefins to tertiary alkyl ethers
05/30/1995US5420359 Blood substitutes, solvents
05/30/1995US5420358 Reaction of dicyclopentadiene with ethylene glycol in the presence of acid cation exghange resin
05/30/1995US5420310 Conversion of 15-beta to 15-alpha 5,6,7-trinor-4,8-inter-m-phenylene PGI2 derivatives
05/23/1995US5417938 Device for carrying out catalyzed reactions
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