Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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11/08/1994 | US5362377 Conversion of olefins by catalytic distillation |
11/07/1994 | CA2114607A1 One-step synthesis of ethyl t-butyl ether from t-butanol using .beta. -zeolite_and multimetal-modified .beta.-zeolite catalysts |
11/02/1994 | EP0523089B1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation |
11/01/1994 | US5360937 Halogenation and distillation to form squaric acids |
10/27/1994 | WO1994024081A1 Formylation process for aromatic aldehydes |
10/26/1994 | CN1094026A Ether Recovery |
10/25/1994 | CA1332768C Fluorinated polymers and copolymers containing perfluoropolyethereal blocks |
10/20/1994 | DE4312037A1 Process for cleaving polycarbonates |
10/13/1994 | WO1994022799A1 Process for clarifying alkoxylated alcohols |
10/12/1994 | EP0618889A1 Tri-substituted phenyl derivatives and processes for their preparation |
10/12/1994 | EP0618841A1 Method of producing alkaline-earth phosphates containing hydrophobic groups |
10/12/1994 | CN1093353A Process for producing dimethyl ether |
10/11/1994 | US5354922 Perfluoropolyoxyalkylene endowed with a high viscosity and a low peroxide oxygen content, and process for preparing them |
10/11/1994 | US5354912 Method for the removal of dimethyl ether from methyl tertiary butyl ether |
10/11/1994 | US5354911 From diacetals; catalyst composed of acid and amine |
10/11/1994 | US5354901 Perfluoro(cycloaliphatic methyleneoxyalkylene) carbonyl fluorides and derivatives thereof |
10/04/1994 | US5352848 Nitrile removal in an etherification process |
10/04/1994 | US5352847 Etherification; reacting with methanol |
10/04/1994 | US5352846 Hydrogenating and isomerizing isopentenes, etherifying, distilling |
10/04/1994 | US5352844 Isolation of partially brominated diphenyl ether mixtures in crystalline form with higher melting range |
10/04/1994 | US5352843 Reacting B-naphthol with alkali or alkaline earth carbonate and benzyl chloride in the absence of water in water miscible solvent |
10/04/1994 | US5352842 Heating oxylated alcohol product produced using calcium based catalyst, passing through filter medium under controlled temperature until desired clarification is obtained, cooling, regeneration of filter medium |
09/29/1994 | WO1994021722A1 Stabilized polyether polyol and polyurethane foam obtained therefrom |
09/29/1994 | WO1994021582A1 Process for preparing diglycerine |
09/29/1994 | DE4309426A1 Hydrogenolytic reduction of peroxidic ozonolysis products |
09/29/1994 | CA2158176A1 Stabilized polyether polyol and polyurethane foam obtained therefrom |
09/28/1994 | EP0616994A2 Process for producing ether alcohols by hydrogenolysis of cyclic ketal |
09/28/1994 | CN1092760A Process for producing dimethyl ether from semi-water gas or water gas |
09/27/1994 | US5350497 Fluorination of corresponding chlorine compound with elemental fluorine |
09/27/1994 | CA1332200C Non-linear optical active diols and polyurethanes prepared therefrom |
09/20/1994 | US5349110 Synthesis of low molecular weight glycol ethers from oxiranes plus olefins |
09/20/1994 | US5349094 Process for the production of oligoglycerol mixtures of increased diglycerol content |
09/20/1994 | US5348707 Multistage reactor for making ether from olefin and alcohol: first zone, with solid regenerable catalyst, operable for swing from product mode to regeneration mode in alternating sequence; second zone with, preferably, acid resin catalyst |
09/20/1994 | US5348677 Electro-optical liquid crystal display element |
09/20/1994 | US5348624 Process for separating ethyl tert-butyl ether and ethanol |
09/16/1994 | CA2118828A1 Vapor phase chlorination of difluoromethyl methyl ether |
09/15/1994 | WO1994020509A1 Triphenylbis (fluoroalkoxy) phosphoranes and fluorinated ketals |
09/15/1994 | WO1994020455A1 Styryl derivatives, their preparation and use as pde-iv inhibitors |
09/15/1994 | WO1994020446A1 Trisubstituted phenyl derivatives as phosphodiesterase inhibitors and processes for their preparation |
09/15/1994 | CA2157362A1 Triphenylbis (fluoroalkoxy) phosphoranes and fluorinated ketals |
09/14/1994 | EP0614869A1 Hydrogenolytic reduction of peroxidic ozonolysis compounds |
09/14/1994 | EP0368946B1 1,2-dioxetanes |
09/14/1994 | CN1092064A Tri-substituted phenyl derivatives and processes for their preparation |
09/13/1994 | CA2118839A1 Hydrogenolytic reduction of peroxidic ozonolysis products |
09/07/1994 | EP0613876A1 Preparation of isoflurane |
09/07/1994 | EP0613875A1 Process for the telomerization of conjugated alkadienes |
09/07/1994 | EP0613485A1 Thermoplastic fluorocopolymers, and method of preparing fluoromonomer for use in the manufacture of the fluorocopolymer |
09/07/1994 | CN1091732A Process of refining diethyloxy methane and its product application |
09/06/1994 | US5345021 Alkylation and dealkylation catalysts for aromatic hydrocarbon compounds |
09/06/1994 | US5345006 Maintaining liquid level; hydrating isobutene with water to make tert-butyl alcohol |
09/06/1994 | US5344998 From formaldehyde and hydrogen fluoride |
09/06/1994 | US5344996 Catalyst removal from alcohol alkoxylates using acid clays |
09/06/1994 | US5344580 Oligomers of fluorinated olefins |
09/04/1994 | CA2116622A1 Process for the telomerization of conjugated dienes and suitable catalyst therefor |
09/01/1994 | WO1994019404A1 Stabilized polyether polyol and polyurethane foam obtained therefrom |
09/01/1994 | WO1994019391A1 Fluorinated polyethers and their preparation |
09/01/1994 | WO1994019305A1 Di-isopropyl ether production |
09/01/1994 | WO1994019304A1 Production of alkyl tertiary alkyl ethers |
09/01/1994 | CA2156188A1 Di-isopropyl ether production |
08/31/1994 | EP0612309A1 Production of bis(fluoromethyl)ether and/or difluoromethane from formaldehyde and hydrogen fluoride. |
08/30/1994 | US5342903 Process for the preparation of adducts of epoxides and alcohols |
08/30/1994 | US5342541 Purified hydroxy-functional polyether compounds |
08/24/1994 | EP0406415B1 Method of producing an alkylene oxide adduct |
08/18/1994 | DE4404291A1 Process for the separation of a mixture of polyglycerols chromatographically |
08/17/1994 | CN1025673C Alkoxylation process using calcium based catalysts |
08/16/1994 | US5338890 One step |
08/16/1994 | US5338889 Alkane rejection in C4 etherification and isomerization process |
08/16/1994 | US5338888 Preparation of E,Z-butenedial bis(dialkyl acetals) |
08/16/1994 | US5338518 Distillation-reaction apparatus and its use for carrying out balanced reaction |
08/16/1994 | US5338478 Stabilized polyether polyol and polyurethane foam obtained therefrom |
08/10/1994 | EP0609813A1 Integrated production of fuel gas and oxygenated organic compounds from synthesis gas |
08/10/1994 | EP0609200A1 Direct fluorination process for making perfluorinated organic substances |
08/10/1994 | EP0525038B1 Process for preparation of resorcinol bis(dihydroxyethyl)ether |
08/04/1994 | WO1994017024A1 Process for producing diethoxymethane |
08/04/1994 | WO1994017023A1 Fluorinated hydrocarbon compound, process for producing the same, and refrigerator oil and magnetic recording medium lubricant |
07/27/1994 | EP0608158A1 Process for producing dicyclopentenyloxyethanol |
07/26/1994 | US5332790 Liquid-phase fluorination |
07/26/1994 | US5332725 Perfumes of alkyl substituted oxotetralin or oxoindanes |
07/26/1994 | CA1331014C Preparation of esterified propoxylated glycerin from free fatty acids |
07/20/1994 | EP0606863A2 Process for the thermooxidative stabilization of glycol compounds and thermooxidative stabilized mixtures thereof |
07/19/1994 | CA2113534A1 Installation and process for the reaction of two liquid reagents in presence of a solid catalyst |
07/19/1994 | CA1330799C Corrosion-inhibiting compositions |
07/19/1994 | CA1330797C Alkoxy methyl ether and alkoxy methyl ester derivatives |
07/13/1994 | EP0606072A1 Selective catalytic hydrogenation of aromatic aldehydes |
07/13/1994 | EP0606065A1 Method for the preparation of biphenyl derivatives |
07/13/1994 | EP0605822A1 Integrated process for the production of methyl tert-butyl ether (mtbe) |
07/13/1994 | EP0428706B1 Perfluorovinyl compounds |
07/12/1994 | US5329051 Ether recovery |
07/07/1994 | WO1994014800A1 Styril derivatives and processes for their preparation |
07/07/1994 | WO1994014742A1 Tri-substituted phenyl derivatives as phosphodiesterase inhibitors |
07/07/1994 | WO1994014740A1 Selective hydroxylation of phenol or phenolic ethers |
07/07/1994 | CA2152086A1 Selective hydroxylation of phenol or phenolic ethers |
07/07/1994 | CA2112795A1 Process for the preparation of biphenyl derivatives |
07/07/1994 | CA2111018A1 Integrated mtbe process |
07/06/1994 | EP0604998A2 Ether recovery |
07/05/1994 | US5326891 Alkoxylation catalyst |
06/29/1994 | EP0604165A1 Production of alkyl tertiary-alkyl ether |
06/28/1994 | US5324866 Hydration of propylene; etherification |
06/28/1994 | US5324865 Di-isopropyl ether production |
06/28/1994 | US5324864 From chlorodifluoromethane and sodium methoxide |