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)
12/1995
12/12/1995US5475176 Process for preparing vinyl-substituted aromatic compounds from arylamines
12/12/1995US5475150 Adsorbent for the separation of ethanol from ethyl tert.-alkyl ether
12/07/1995WO1995032936A1 Initiators for telomerization of polyfluoroalkyl iodides with fluoroolefins
12/06/1995EP0685444A1 Aromatic compounds and their use in perfumery
12/06/1995EP0684939A1 Di-isopropyl ether production
12/06/1995EP0684872A1 Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst
12/06/1995EP0556174B1 Etherification process
12/05/1995US5473105 Reacting water, ethanol, propylene in presence of acidic catalyst, removing acid from product mixture, recycling
12/05/1995US5473082 Device for carrying out catalyzed reactions
11/1995
11/30/1995WO1995032174A1 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
11/30/1995WO1995031965A1 Physiologically acceptable emulsions containing perfluorocarbon ether hydrides and methods of use
11/30/1995CA2190116A1 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
11/22/1995EP0683181A1 Fluorinated polymers and copolymers containing cyclic structures
11/22/1995EP0683149A2 New peroxide curable fluoroelastomers, particularly suitable for manufacturing O-rings
11/22/1995EP0549618B1 Method for the preparation of trans-3,3,5-trimethylcyclohexyl ethyl ether
11/22/1995CN1030314C Process for synthesis of 1,7,7-trimethyl-bicyclo |2.2.1¨ heptyl-hydroxyalkyl (or cycloalkyl) ether
11/21/1995US5468352 Electrolytic decarboxylation
11/20/1995CA2149739A1 Fluorinated polymers and copolymers containing cyclic structures
11/15/1995CN1111609A Alkoxylation process
11/14/1995US5466720 Using a mixture of carbon monoxide with hydrogen and water in the presence of a catalyst
11/09/1995WO1995029887A1 Pesticidal fluoroolefins
11/09/1995CA2187918A1 Pesticidal fluoroolefins
11/08/1995EP0680944A1 Ether purification process comprising two distillation steps
11/08/1995CN1111231A Process for synthesis of dimethyl ether by catalytic distillation
11/07/1995CA1337540C Wettable, flexible, oxygen permeable, swellable contact lens containing polyoxyalkylene backbone units, and use thereof
11/03/1995CA2146412A1 Integrated process for the production of isopropyl alcohol and diisopropyl ethers
11/02/1995EP0679627A1 Process for the preparation of halogenated ethers
10/1995
10/31/1995US5463157 Process for preparing 3-methyl-2-pentene
10/31/1995US5463139 Production of difluoromethane
10/31/1995US5463138 Catalytic fluoromethylation of substituted phenol, thiophenol, naphthol or naphthiol with chlorofluoromethane in presence of quarternary or phosphonium salt
10/31/1995US5463088 Process for preparing perfluoroalkoxy (alkylthio) benzenes
10/31/1995US5463059 Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
10/31/1995US5462971 Fluid be cracking to volatile lower molecular weight products
10/29/1995CA2147929A1 Process for the preparation of halogenated ethers
10/24/1995US5461117 Liquid phase fluorination
10/24/1995CA1337430C Pesticides
10/19/1995WO1995027898A1 Gas chromatographic analysis of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
10/18/1995EP0677504A1 Fluorinated hydrocarbon compound, process for producing the same, and refrigerator oil and magnetic recording medium lubricant
10/18/1995EP0677035A1 Method for purifying a glycol solution
10/12/1995WO1995026949A1 Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
10/11/1995EP0676387A1 2,2-bis(3,5-disubstituted-4-hydroxyphenyl)propane derivative, process for producing the same, and process for producing pyrogallol therefrom
10/11/1995EP0460196B1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
10/10/1995US5457246 Process and arrangement for recovery of polyol production wastes
10/10/1995US5457243 Neutralization of crude MTBE effluent streams using solid bases
10/10/1995US5457219 Phosphorus compounds
10/10/1995CA2071605C Process for dehydrochlorinating 1,1-bis(r-phenyl)-2,2,-trichloroethanes
10/10/1995CA1337298C Chiral phosphinopyrrolidine compounds and their use for asymmetric synthesis of optically active compounds
10/05/1995WO1995026326A1 Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
10/04/1995EP0675129A1 Process for preparing hetero substituted acetals
10/04/1995EP0675099A1 Process for the purification of ethyl tert-butyl ether combining a membrane process and a distillation
10/04/1995EP0675098A2 Chlorination of difluoromethyl methylether and preparation of fluorinated dimethylethers
10/04/1995EP0674611A1 Selective hydroxylation of phenol or phenolic ethers
10/03/1995US5455371 Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby
10/03/1995US5455362 Preparation of astaxanthin novel intermediates therefor and the preparation thereof
10/03/1995US5455361 Process for preparing ketene acetals
10/03/1995US5454974 Halobenzene liquid crystals
10/02/1995CA2145144A1 Chlorination of difluoromethyl methyl ether
09/1995
09/30/1995CA2145498A1 Process for the preparation of heterosubstituted acetals
09/28/1995WO1995025710A1 Electrophilic substitution of triphenylene-based discotic liquid crystals
09/28/1995WO1995023780A3 Skin lightening compositions
09/28/1995WO1995023779A3 Process for making monoacetals of hydroquinone
09/28/1995WO1995023778A3 Process for making monoacetals of hydroquinone
09/27/1995EP0673356A1 Chlorofluoroether compositions and preparation thereof
09/27/1995CN1109045A Process for the preparation of alkoxylates using ester compounds as catalyst
09/26/1995US5453550 Reduced catalyst poisoning, pressurization to keep hydrogen in liquid feedstock, tert-amyl methy ether
09/26/1995US5453549 Chemical intermediates such as hybrid silicones formed by hydrosilation; heat resistance, water/oil repellency, antisoilants
09/21/1995WO1995025066A1 Crystalline borophosphates, their production and use
09/21/1995DE4408486A1 Kristalline Borophosphate, ihre Herstellung und Verwendung Crystalline borophosphates, their preparation and use
09/21/1995CA2185585A1 Crystalline borophosphates, their preparation and use
09/20/1995EP0672198A1 Electrochemical fluorination
09/20/1995EP0555260B1 Process for the production of biaryls
09/20/1995EP0458965B1 Process for the preparation of vinyl ethers
09/14/1995DE4408151A1 Prepn. of new and known substd. tetra:fluoro-ethoxy-benzene cpds.
09/14/1995DE19510878A1 Preparing poly(tetra:methylene ether) glycol with a narrow molecular weight distribution
09/13/1995EP0671394A1 Integrated production of propylene oxide and methyl t-butyl ether
09/12/1995US5449841 Process for purifying polyols
09/12/1995US5449839 One step synthesis of ethyl t-butyl ether from t-butanol using β-zeolite and multimetal-modified β-zeolite catalysts
09/12/1995US5449838 Catalytic hydrogenation and etherification with acid catalysts
09/12/1995US5449837 Reaction of alcohol, carbon tetrafluoride and hydrogen fluoride for bis ether
09/12/1995US5449836 Process for the preparation of vitamin A and intermediate compounds which are useful for this process
09/12/1995US5449825 Preparation of haloperfluoro and perfluoro ethers
09/12/1995US5449501 Apparatus and process for catalytic distillation
09/12/1995US5449472 Polyvinyl ether
09/09/1995CA2143461A1 Integrated production of propylene oxide and methyl t-butyl ether
09/08/1995WO1995023780A2 Skin lightening compositions
09/08/1995WO1995023779A2 Process for making monoacetals of hydroquinone
09/08/1995WO1995023778A2 Process for making monoacetals of hydroquinone
09/08/1995CA2184478A1 Skin lightening compositions
09/06/1995EP0670298A1 Stilbene-based materials, their preparation and use
09/06/1995EP0670294A2 Process for making hexafluoropropane and perfluoropropane
09/06/1995EP0669905A1 Pervaporation separation process of a mixture of methanol and tetrahydrofurane
09/06/1995EP0580619B1 Process for producing hydrophobised double-layer hydroxide compounds
09/05/1995US5447607 Water extraction and distillation
08/1995
08/30/1995EP0669307A1 Process for recovering dipropylene glycol tert-butyl ethers
08/30/1995EP0669306A1 Energy conservation during plural stage distillation
08/30/1995EP0668850A1 Oxygenated aliphatic compounds and their use as intermediates in the preparation of 4-hydroxy-2,5-dimethyl-3(2h)-furanone
08/29/1995US5446224 Integrated process for producing iso-butene and alkyl tert-butyl ethers
08/29/1995US5446211 Chlorination of difluoromethyl methyl ether
08/29/1995US5446210 Process for the production of polyol ethers
08/29/1995US5446208 Process for producing ether alcohols by hydrogenolysis of cyclic ketal
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