Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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05/18/1995 | WO1995013538A1 Methods of producing and screening complex chemical libraries |
05/18/1995 | WO1995013260A1 Method of producing mixtures of low-foaming non-ionic surfactants with an acetal structure |
05/18/1995 | WO1995013258A1 Synergistic process for the production of methanol |
05/18/1995 | WO1995013255A1 Flexible light olefins production |
05/18/1995 | WO1995013213A1 A cargo compartment for a lighter-than-air vehicle |
05/17/1995 | EP0653413A2 Detergent composition containing ether-carboxylic acids |
05/17/1995 | EP0653411A2 Synthesis of alkyl t-alkyl ether |
05/17/1995 | EP0653396A1 Process for the preparation of 1,1'-binaphthylene |
05/16/1995 | US5416245 Synergistic process for the production of methanol |
05/16/1995 | US5416244 Preparation of isoflurane |
05/16/1995 | US5416235 Preparation of substituted aryl compounds |
05/11/1995 | DE4338395A1 Process for the preparation of mixtures of low-foam non-ionic surfactants having acetal structure |
05/11/1995 | DE4338394A1 Process for the preparation of mixtures of low-foam non-ionic surfactants having acetal structure |
05/11/1995 | DE4338164A1 Process for the preparation of substituted 2,2-difluoroethoxybenzene |
05/10/1995 | EP0652200A1 Ether generation from acetone |
05/10/1995 | EP0652199A1 Extraction of methanol from methyl tertiary butyl ether |
05/10/1995 | EP0652198A1 Extraction of methanol from methyl tertiary butyl ether |
05/10/1995 | EP0652197A1 Production of at least one alkyl t-butyl ether from natural gas |
05/10/1995 | EP0652194A1 Process for the separation of oxygenated compounds from hydrocarbons, combining a distillation step and a permeation step and its use in etherification |
05/09/1995 | US5414183 Nitrogen removal from light hydrocarbon feed in olefin isomerization and etherication process |
05/09/1995 | US5414147 Method for improving conversion of isobutylene in MTBE process |
05/09/1995 | US5414146 Reaction of tert-alkene with alcohol to produce ether using metallosilicate catalyst |
05/09/1995 | US5414145 Oxidation of isobutane with tert-butyl hydroperoxide |
05/09/1995 | US5414142 Reacting under inert atmosphere corresponding carbocyclic alcohol with C3-6 alkyl halide or benzyl halide and metal hydride, destroying excess metal hydride with alcohol, extracting ether, distilling off ether |
05/09/1995 | CA2135262A1 One step synthesis of methyl t-butyl ether from t-butanol using platinum/palladium-modified b-zeolite catalysts |
05/09/1995 | CA2135244A1 Diisopropyl ether/mtbe cogeneration from crude by-product acetone |
05/06/1995 | CA2135141A1 Isobutylene-assisted aqueous extraction of methanol from methyl tertiary butyl ether |
05/06/1995 | CA2135140A1 Continuous isobutylene-assisted aqueous extraction of methanol from methyl tertiary butyl ether |
05/04/1995 | WO1995011876A1 Method for purifying a glycol solution |
05/04/1995 | WO1995011874A1 A process for preparing 3-methyl-2-pentene |
05/03/1995 | EP0650470A1 Method of preparing polyol alkyl ethers |
05/02/1995 | US5412143 Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid |
05/02/1995 | US5412114 Etherification, optical resolution, steric hindrance |
05/02/1995 | US5411676 Chiral dopants for liquid crystalline mixtures |
04/27/1995 | WO1995011213A1 Alkylene glycols having a higher primary hydroxyl content |
04/27/1995 | WO1995011212A1 Alkoxylation process |
04/27/1995 | WO1995011211A1 2,2-bis(3,5-disubstituted-4-hydroxyphenyl)propane derivative, process for producing the same, and process for producing pyrogallol therefrom |
04/27/1995 | DE4332383C1 Process for the preparation of 2,6-difluoro-4-chlorotrifluoromethoxybenzene |
04/27/1995 | CA2174238A1 Alkoxylation process |
04/26/1995 | EP0649829A1 Process for the production of glycerol ethers |
04/25/1995 | US5410095 Reacting at least one perfluoromethoxyacetic acid derivatives with at least one hydroxylic compound selected from water, mono-alcohols, alkanediols |
04/25/1995 | US5409953 Isolation, structural elucidation and synthesis of novel antineoplastic substances denominated "combretastatins" |
04/16/1995 | CA2118176A1 Process for the production of at least one alkyl tertiary butyl ether from natural gaz |
04/12/1995 | EP0647609A1 Process for producing fluorinated vinyl ether |
04/12/1995 | EP0647608A1 Process of production of tertiary ethers from C4 or C5 feedstock, including extractive distillation |
04/12/1995 | EP0647215A1 Process for producing oligoclycerine mixtures with increased diglycerine content. |
04/12/1995 | EP0396650B2 Device for carrying out catalytic reactions |
04/12/1995 | CN1101347A Process for the manufacture of phenoxyphenoxyalkyl derivatives |
04/11/1995 | US5405980 Using as catalyst an oligomerizd potassium salt of a polyhydroxyalkane |
04/11/1995 | US5405814 Olefin conversion catalyst regeneration |
04/09/1995 | CA2117729A1 Process for the production of tertiary ethers from a c4 or c5 load with two extractive distillations |
04/05/1995 | EP0646557A1 Fluorination in tubular reactor system |
04/05/1995 | CA2131497A1 Fluorination in tubular reactor system |
03/30/1995 | DE4333101A1 Process for the preparation of non-ionic surfactant mixtures |
03/29/1995 | EP0645361A1 Production method for alkoxynaphthalenecarboxylic acid |
03/29/1995 | EP0645360A1 Synthesis of alkyl t-Alkyl ether using pentasil zeolite Catalysts |
03/29/1995 | EP0645359A1 Synthesis of alkyl t-alkyl ether using pillared, phosphated montmorillonite clay catalysts |
03/29/1995 | EP0643681A4 Isolation of partially brominated diphenyl ether mixtures. |
03/29/1995 | EP0638058A4 Alkoxylation process. |
03/29/1995 | EP0537260B1 A method for avoiding formation of by-products at the production of an ethoxylated polyol |
03/29/1995 | CN1100711A Vapor phase chlorination of difluoromethyl methyl ether |
03/28/1995 | US5401887 Process for the production of ethyl tert.-alkyl ethers |
03/28/1995 | US5401885 Method of preparing ortho esters and 1.1-dialkoxycycloalkanes |
03/28/1995 | US5401772 Heteroacetic acid derivatives |
03/28/1995 | US5401436 Liquid crystal |
03/28/1995 | CA2129066A1 One-step synthesis of methyl t-butyl ether from t-butanol using pillared phosphated montmorillonite clay catalysts |
03/24/1995 | CA2128907A1 One-step synthesis of methyl t-butyl ether from t-butanal using pentasil zeolite catalysts |
03/23/1995 | WO1995007876A1 Oxygenated aliphatic compounds and their use as intermediates in the preparation of 4-hydroxy-2,5-dimethyl-3(2h)-furanone |
03/22/1995 | EP0644175A1 Polyvinyl ether compound and lubricating oil |
03/22/1995 | EP0643681A1 Isolation of partially brominated diphenyl ether mixtures |
03/22/1995 | EP0643680A1 Process for preparing methyl ethers |
03/22/1995 | EP0441807B1 Liquid phase fluorination |
03/22/1995 | CN1100406A A process for the production of a cyclopentenol derivative |
03/21/1995 | US5399788 Two-stage process for producing diisopropyl ether using hydration |
03/21/1995 | US5399787 Olefin isomerization process using etherification feed isomerization |
03/21/1995 | US5399779 Process for preparing perfluoro-2-methyl-4-methoxypentane |
03/21/1995 | US5399778 Transketalizing a dimethyl ketal with aliphatic alcohol to more than 90% completion at 150-180 degrees C. and separating product by distillation without solvent |
03/21/1995 | US5399759 Process for conducting chemical reactions with formaldehyde |
03/21/1995 | US5399718 Removal of hydrofluoric acid by-product |
03/21/1995 | US5399645 Allyl substituted vinyl ethers which undergo cyclization polymerization, clear coatings for optical fibers, moldings |
03/21/1995 | US5399631 Polyvinyl ether compound |
03/21/1995 | US5399336 Stannozeosilite/zirconozeosilite zeolites and catalytic hydroxylation of phenolics therewith |
03/16/1995 | WO1995004762A3 Liquid phase and aqueous solutions of poly(vinyl methyl ether) from highly purified vinyl methyl ether monomer |
03/15/1995 | EP0643053A1 Process for the manufacture of phenoxyphenoxyalkyl derivatives |
03/15/1995 | EP0643033A1 Multi-purpose catalytic distillation column and etherification process using same |
03/15/1995 | EP0642486A1 PRODUCTION OF HYDROFLUOROCARBONS FROM $g(a)-FLUOROETHERS AND $g(a)-FLUOROETHERS |
03/15/1995 | CN1100085A Hydrogenolytic reduction of peroxidic ozonolysis products |
03/10/1995 | CA2128482A1 Multi-purpose catalytic distillation column and etherification using same |
03/08/1995 | CN1099740A Selective catalytic hydrogenation of aromatic aldehydes |
03/07/1995 | US5395982 Purifying by countercurrent contact |
03/07/1995 | US5395981 Hydrocarbon conversion by catalytic distillation |
03/07/1995 | US5395766 Optically active trans-2-aryl-1-cyclohexanol derivatives and a process for producing the compounds |
03/02/1995 | WO1995006025A1 Process for the preparation of an acetal |
03/02/1995 | WO1995006024A1 Production of alkyl tertiary alkyl ethers |
03/02/1995 | DE4429700A1 Process for the preparation of butenediols and butenediol derivatives in the presence of rhenium-containing catalysts |
03/02/1995 | DE4429699A1 Process for the preparation of butenediols and butenediol derivatives in the presence of oxidic catalysts |
03/01/1995 | EP0640065A1 Trisubstituted phenyl derivatives as phosphodiesterase inhibitors and processes for their preparation |
03/01/1995 | EP0640064A1 Process and apparatus for preparing tertiary alkyl ethers. |
03/01/1995 | EP0640013A1 Acid catalysts. |
02/28/1995 | US5393916 Inhibition of dioxane formation during recovery of glycols from polyester resins |