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