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)
11/1992
11/11/1992	EP0512593A1 Continuous integrated process for producing dimethyl carbonate and methyl tert-butyl ether
11/11/1992	EP0307457B1 Improved vapor phase bromination of aromatic compounds
11/10/1992	US5162592 Reaction with methanolusing zeolites modified with multimetals, heating, pressurization
11/10/1992	US5162591 Zeolite Beta
11/10/1992	US5162589 Alkoxylation process catalyzed by sodium- or potassium barium phosphate
11/09/1992	CA2066880A1 Continuous integrated process for producing dimethyl carbonate and methyl tert-butyl ether
11/03/1992	US5160496 With hydrogen peroxide, catalytic bridged clay
11/03/1992	US5160414 Extractive distillation of alcohol/ether/hydrocarbon mixtures
11/03/1992	CA1309729C Liquid phase isomerization of iodoaromatic compounds
10/1992
10/30/1992	CA2041420A1 Ether production
10/28/1992	EP0510685A2 Perfluoropolyoxyalkylene endowed with a high viscosity and a low peroxide oxygen content, and process for preparing them
10/28/1992	EP0510223A1 Ether production
10/28/1992	EP0510165A1 Amphiphilic non-ionic, glycerol-derived compounds, a method for preparing same, corresponding intermediate compounds and compositions containing said compounds.
10/28/1992	CN1065656A Preparing diglycol monotertiary butyl ether
10/28/1992	CN1065655A Refining diglycol monotertiary butyl ether
10/27/1992	US5159122 Using acid treated catalyst
10/27/1992	US5159121 Palladium complex catalyst
10/27/1992	US5159120 Preparation of dialkoxybutenes
10/27/1992	US5159092 Process for the safe and environmentally sound production of highly pure alkylene oxide adducts
10/27/1992	US5159082 Process for producing aromatic compound
10/27/1992	US5158977 Antioxidant; preventive treatment of cutaneous inflammations and allergies
10/27/1992	US5158652 Distillation at different pressures; recycling ethanol
10/24/1992	CA2065971A1 Alkanediol bisacetals
10/22/1992	DE4138166C1 (Meth)allyl:alkoxy:alkylene prodn. - by reacting corresp. alcohol with excess sodium hydroxide or methoxide and simultaneously distilling off formed water or ethanol until specified reduced pressure is reached adding excess alkyl chloride, etc.
10/21/1992	EP0509927A1 Method of producing a monoalkylether of a dihydric phenol compound
10/20/1992	US5157163 Distillation of reaction mixture in the presence of added water
10/20/1992	US5157162 Continuous processing
10/20/1992	US5157161 One-step synthesis of methyl t-butyl ether from t-butanol using hydrogen fluoride-modified montmorillonite clays
10/20/1992	US5157159 Reacting alcohols with alkylene carbonate in the presence of nitrogen base catalyst
10/20/1992	CA1309113C Selective liquid phase disproportionation catalysts for iodoaromatics
10/20/1992	CA1309112C Process for the preparation of alkylene glycol dialkyl ethers
10/20/1992	CA1309111C Process for the preparation of decabromodiphenyl ether with improvedthermal stability
10/15/1992	WO1992017441A1 Process for conducting chemical reactions with formaldehyde
10/15/1992	WO1992017430A1 Alkoxylation of active hydrogen compounds
10/14/1992	EP0508657A2 Integrated process for producing ethanol, methanol and butyl ethers
10/14/1992	EP0507770A1 Process for preparing an ether.
10/14/1992	EP0396650B1 Device for carrying out catalytic reactions
10/13/1992	US5155281 Reacting thionocarbonate derivatives with sulfenyl chloride compounds
10/13/1992	US5155253 Reacting vinyl derivative of first Bronsted acid with labile Bronsted acid in presence of ruthenium catalyst, maintaining concentration below certain level and removing product as formed
10/13/1992	US5155196 Derived from propargyl ethers, cyclization to chromenes; waterproof, heat and solvent resistant; structural materials
10/13/1992	US5154801 Advances in product separation in dipe process
10/13/1992	CA1308731C Nona-1,3,5-triene derivatives; process for preparing them and their use
10/08/1992	DE4110835A1 Verfahren zur herstellung hydrophobierter doppelschichthydroxid-verbindungen A process for preparing hydrophobicized double layer hydroxide compounds
10/08/1992	DE4110834A1 Verfahren zur herstellung von fettalkoholpolyalkylenglycolethern A process for preparing fettalkoholpolyalkylenglycolethern
10/07/1992	EP0507076A1 Method for separating ethyl tert-butyl ether from mixtures with ethanol
10/07/1992	EP0456658A4 Vinyloxy hydroxyalkylcycloalkane and preparation therefor
10/07/1992	CN1018546B Reduction of carboxylic esters
10/07/1992	CN1018524B Catalytic distillation colum
10/06/1992	US5153344 Vitamin E intermediates and a process for their manufacture and conversion into vitamin E
10/06/1992	CA1308421C Process for preparing iodinated aromatic compounds
10/05/1992	WO1992017431A1 Process for producing fatty alcohol polyalkylene glycol ethers
10/05/1992	WO1992017405A1 Process for producing hydrophobised double-layer hydroxide compounds
10/05/1992	CA2107685A1 Process for producing hydrophobicized double-layer hydroxide compounds
10/05/1992	CA2107684A1 A process for the production of fatty alcohol polyalkylene glycol ethers
10/01/1992	DE4110178A1 Verbessertes verfahren zur herstellung von nichtionischen oberflaechenaktiven verbindungen An improved process for the preparation of nonionic compounds oberflaechenaktiven
10/01/1992	DE4105743C1 Benzyl:aryl:sulphone(s) useful as LCD - are produced by reacting salt of aryl:sulphinic acid with corresp. benzyl halide
09/1992
09/30/1992	EP0506428A1 Synthesis of methyl t-butyl ether using Group IV oxides treated with sulfates or sulfuric acid
09/30/1992	EP0506424A1 Process for producing a deprotected alkoxylated polyol
09/30/1992	EP0506070A2 Transvinylation process for the preparation of thermally labile vinyl compounds and vinyl compounds prepared from thermally labile acids
09/30/1992	EP0505923A1 Phenol ethers, process for their preparation and medicaments containing them
09/30/1992	EP0505895A1 Aromatic compounds, their production processes and their compositions for the control of insect pests
09/30/1992	CA2048017A1 One step synthesis of methyl t-butyl ether from t-butanol plus methanol using group iv oxides treated with sulfates or sulfuric acid
09/29/1992	US5151160 Distillation of a mixture and extraction with a solvent
09/29/1992	CA2064376A1 Transvinylation process for the preparation of thermally labile vinyl compounds and vinyl compounds prepared from thermally labile acids
09/29/1992	CA1308120C Aldehydes, acetals, alcohols and ethers having 3-methyl- or 3,5-dimethyl-benzyl groups, their manufacture and perfume materials containing same
09/28/1992	WO1992017429A1 Improved process for producing non-ionic surface-active compounds
09/28/1992	CA2107121A1 An improved process for the production of nonionic surface-active compounds
09/24/1992	WO1992016485A1 New phenol ethers, process for producing the same and medicaments containing these compounds
09/24/1992	DE4109251A1 Fatty alcohol poly:alkylene-glycol] ether] prodn.
09/24/1992	CA2106687A1 Phenol ethers, processes for their preparation and medicaments which contain these compounds
09/23/1992	EP0504541A1 Improved catalytic process for selective alkylation of aromatic hydrocarbons
09/23/1992	CN1064673A Reduction of carboxylic esters
09/23/1992	CN1018367B Process for production of ether
09/22/1992	US5149888 Hydroxylation of phenols/phenol ethers
09/22/1992	US5149858 Reacting with chlorine gas in presence of organic cation catalysts
09/17/1992	WO1992015542A1 Process for controlling a chemical process
09/17/1992	DE4107773A1 Verfahren zur beeinflussung eines chemischen prozesses Method for influencing a chemical process
09/16/1992	EP0503990A1 Apparatus for distillation-reaction and its use
09/16/1992	EP0357610B1 Insecticidal cyclopropyl-substituted di(aryl) compounds
09/16/1992	CN1064476A Integrated process for producing iso-butene and alkyl tert-butyl ethers
09/09/1992	EP0502651A1 Synthesis of alkyl t-alkyl ether using zeolite catalysts
09/09/1992	EP0502374A1 Process of preparation of 3-alkoxycarbonylpropenals and 3-dialkoxymethylpropenals
09/09/1992	EP0502265A2 Integrated process for producing iso-butene and alkyl tert-butyl ethers
09/09/1992	CN1018178B Process for production of ethers
09/08/1992	US5146041 Method of separating isobutylene from a C-4 hydrocarbon fraction using montmorillonite catalysts
09/08/1992	US5145972 Process for preparing halo acetals from enamines
09/08/1992	CA2062473A1 Process for the separation of ethyltertiobutylether from ethanol mixtures
09/05/1992	CA2048772A1 One step synthesis of methyl t-butyl ether from t-butanol using fluorosulfonic acid-modified zeolite catalysts
09/03/1992	WO1992014548A1 Polymerizing tetrahydrofuran to produce polytetramethylene ether glycol using a modified fluorinated resin catalyst containing sulfonic acid groups
09/03/1992	DE4123991C1 Prodn. of monomer-free ethoxylate(s) - is by catalytically converting substrates with ethylene oxide, and flushing supply line periodically with nitrogen@ gas
09/01/1992	US5144094 Diaryl ethers by dehydration of phenols
09/01/1992	US5144093 Process for purifying and end-capping polyols made using double metal cyanide catalysts
09/01/1992	US5144086 Ether production
09/01/1992	US5144085 Feedstock dewatering and etherification of crude ethanol
09/01/1992	US5144084 Acidic Zeolite, Nonacidic Refractory Oxide Binder
09/01/1992	US5144083 Process for producing p-hydroxyneophyl m-phenoxybenzyl ether
08/1992
08/29/1992	CA2054894A1 Integrated process for producing iso-butene and alkyl tert-butyl ethers
08/25/1992	US5141525 Process for producing high-octane, low-olefin motor fuels and motor fuel components
08/25/1992	CA1306759C Process for removing contaminants from dialkyl ethers of polyalkylene glycols
08/20/1992	WO1992013820A1 Process for the preparation of alkyl-4-halophenyl ethers

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