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)
07/1991
07/17/1991EP0436629A1 Fluorination of acetals, ketals and orthoesters
07/16/1991US5032314 Optically active 2-substituted-propyl ether and a liquid crystal composition
07/11/1991WO1991009822A1 Continuous process for the telomerization of conjugated dienes
07/09/1991US5030768 Cyclic concentration skins adsorption sequence to remove alcohol reacted with olefin
07/03/1991EP0434960A1 Chiral 1,5-diiodo-2-methoxy or benzyloxy intermediates
07/03/1991EP0434730A1 Process for removing impurities from an aromatic stream
07/03/1991CN1052656A Method of single terpene base ether catalysis synthesized by natural zeolite
07/03/1991CA2032220A1 Tertiary amyl methyl ether from c-5 olefin streams
06/1991
06/28/1991WO1991009828A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/28/1991CA2048624A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/27/1991WO1991009829A1 Process for preparing an ether
06/27/1991WO1991009046A1 Morpholinyl derivatives of doxorubicin and process for their preparation
06/27/1991CA2072102A1 Process for preparing an ether
06/26/1991EP0434517A2 Process for the preparation of mono- or poly-alkoxylated aromatic compounds
06/26/1991EP0434516A2 Process for the preparation of mono- or poly-alkoxylated aromatic compounds
06/26/1991EP0433349A1 Process for producing fatty alcohol derivatives
06/26/1991EP0433309A1 Use of metallic acetyl acetonates as catalysts for ethoxylation or propoxylation
06/26/1991CN1052478A Lmproved process for preparing vinyl ethers
06/25/1991US5026924 Process for production of 1,2,2,2-tetrafluoroethyl difluoromethyl ether
06/25/1991US5026923 Reacting alkylene oxides with alkanols, phenols or polyols
06/25/1991US5026732 Use of avarone for the control of AIDS and ARC
06/25/1991US5026727 1,1-Difluoro-2-alkyl-2-(4-trifluoromethoxy-phenyl)-3-(substituted benzyloxy) propane
06/25/1991US5026459 Apparatus for reactive distillation
06/25/1991CA1285283C Tricyclo (6.2.1.0 , )undecanes useful as fragrance chemicals
06/25/1991CA1285278C Cyclopentane derivatives
06/21/1991CA2032580A1 Process for preparing aromatic mono or polyalkoxylated derivatives
06/19/1991EP0432949A2 Production of polyalkylene glycol ethers
06/19/1991EP0432208A1 Process for producing fatty alcohol derivatives.
06/19/1991EP0432163A1 Integrated process for the production of ether-rich liquid fuels
06/18/1991US5025094 Heterogeneous alkoxylation using anion-bound metal oxides
06/18/1991US5024679 Olefins etherification and conversion to liquid fuels with paraffins dehydrogenation
06/15/1991WO1991009002A1 Process for the preparation of vinyl ethers
06/12/1991EP0432006A2 Process for hydroxylating phenols and phenol ethers
06/12/1991EP0431487A1 Process for preparing 3,4'-dichlorodiphenyl-ether
06/12/1991EP0179788B1 Pesticides
06/11/1991US5023389 Selectivecy converting branched olefins, separation, oligomerization
06/11/1991US5023380 Monomer for thermoplastic resin
06/11/1991US5023363 Antiinflammatory agent, antiallergens, skin disorders, vision defects
06/11/1991US5023232 Mixtures of bicyclic ethers and fragrance compositions containing same
06/11/1991US5023224 Alkoxylation process catalyzed by lanthanum silicates and metasilicates
06/06/1991CA2031482A1 Phenols and phenols esters hydroxylation process
06/06/1991CA2031444A1 Process for the preparation of 3,4'-dichlorodiphenyl ether
06/05/1991EP0430806A1 Process for the preparation of haloketals from enamines
06/05/1991EP0430434A2 Process for the preparation of fluoroaromatic and fluoroheteroaromatic compounds
06/05/1991EP0429975A1 Process for the preparation of 4,4'-dibromodiphenylether
06/05/1991EP0429618A1 Reactive compounds containing perfluorocyclobutane rings
06/04/1991US5021602 Monomers for condensation polymers
06/04/1991US5021191 Ferroelectricity display elements; extremely small redution in crystal temperature region
06/04/1991CA1284662C Phenol alkylation process
06/04/1991CA1284654C ¬4.2.0|bicyclooctane derivatives with valuable therapeutic properties
06/02/1991CA2031249A1 Process for producing halogenoacetals from enamines
05/1991
05/29/1991EP0428706A1 Perfluorovinyl compounds.
05/28/1991US5019657 Process for the preparation of halophenols
05/22/1991EP0428423A2 Aryloxy alkyl benzenes, processes for their preparation and pharmaceutical compositions containing them
05/15/1991EP0427711A1 Hydrogenation of unsaturated ethers
05/15/1991EP0427603A1 Process for the preparation of fluorinated aromatic compounds and catalysts based on Lewis-acids
05/15/1991EP0427088A2 Improved method for the preparation of methyl ethers of polyether polyols employing dimethylsulfate as a methylating agent
05/14/1991US5015797 Acidic mordenite alkylation catalyst for alkylation of polycyclic aromatic compounds with olefins
05/14/1991US5015783 Production of ethers by the reaction of alcohols and olefins
05/14/1991US5015782 Multistage catalytic etherification of mixed olefinic hydrocarbons containing four carbons and also containing isoalkenes
05/14/1991US5015781 Anesthetic compound and method of preparing
05/14/1991US5015761 Esters and alcohol derivatives of dimethyltricyclo(6.2.01.6)un decanes as perfumes
05/14/1991CA2027664A1 Systhesis of low molecular weight glycol ethers from oxiranes plus olefins
05/08/1991EP0425920A2 Method for making octyloxy substituted diphenyl iodonium hexafluoro metalloid salts
05/08/1991EP0425893A1 Process for the separation of a mixture of 1-methoxy-2-propanol and water into its components
05/08/1991EP0425643A1 Octadienyl ethers and a process for making octadienyl ethers.
05/07/1991US5013477 Alkenylbicyclohexane liquid crystals
05/07/1991US5013472 Hydraulic fluids and oils, endcapped perhaloalkyl oxyfluoride
05/07/1991US5013444 Process for separating off enol ethers from reaction mixtures containing alcohols
05/07/1991US5013407 Apparatus for reactive distillation
05/07/1991CA2029328A1 Process for preparing fluorinated aromatic derivatives with a lewis acid catalyst
05/02/1991WO1991003456A3 Process for preparing salt-free esters of fatty acids with oligoglycerins or with addition reaction products of ethylene oxide and/or propylene oxide with oligoglycerins
05/02/1991EP0424511A1 Integrated process for enhancing high octane ether production and olefin conversion in gasoline
05/01/1991CA2023392A1 Method for making octyloxy substituted diphenyl iodonium hexafluoro metalloid salts
04/1991
04/30/1991US5012017 Phenoxyphenoxypropionates, intermediates thereof and methods of preparation
04/30/1991US5012014 Catalyst pretreatment for olefin hydration
04/30/1991US5012013 Process for the purification of alkylene oxide adducts
04/30/1991US5012012 Alkoxylation catalyst
04/30/1991US5011506 Integrated etherification and alkene hydration process
04/24/1991EP0424154A1 Integrated process for the production of diisopropyl ether and gasoline
04/24/1991EP0423949A2 Membrane process for separation of organic liquids
04/24/1991EP0423745A1 Continuous process for the preparation of ketals
04/24/1991EP0423479A1 Method for the production of 4,4'-dihalogenated oligophenyls
04/24/1991EP0423288A1 Conversion of alcohols to ether-rich gasoline
04/24/1991CN1050828A Mixed phase catalysis reaction distillation technology and equipment
04/23/1991US5009859 Extraction and reactor system
04/21/1991WO1991005750A2 Process for producing fluorinated organic compounds
04/21/1991CA2067387A1 Process for producing fluorinated organic compounds
04/21/1991CA2028044A1 Continuous process for the preparation of ketals
04/21/1991CA2026966A1 Integrated process for the production of diisopropyl ether and gasoline
04/18/1991WO1991004956A1 Method for continuous production of δ1-enol ethers
04/17/1991EP0422188A1 Integrated process for production of gasoline and ether from alcohol with feedstock extraction
04/17/1991CA2020532A1 Membrane process for separation of organic liquids
04/16/1991US5008467 Producing methyl tert-butyl ether from isobutane
04/16/1991US5008466 Process for the isomerization of alkenes having a terminal double bond to give alkenes having an internal double bond
04/16/1991US5008465 Preparing ether by heating alcohol with olefin
04/16/1991US5008464 Producing 4-bromo-3-alkylanisole
04/16/1991US5008442 Surface-active compounds on the basis of arylated fatty substances and their use
04/16/1991US5008236 Heat-sensitive recording material
04/16/1991CA1283130C Cotelomers of vinilydene fluoride with fluorinated olefins and processfor their preparation
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