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)
11/1998
11/18/1998CN1199038A Use of aluminum phosphate as dehydration catalyst in single step dimethyl ether process
11/18/1998CN1040744C Extraction of natural guaiacol
11/12/1998WO1998050389A1 Aluminum compounds and use thereof
11/12/1998WO1998050334A1 Production of brominated methoxynaphthalene compounds
11/12/1998WO1998050332A1 Separation of co2 from unsaturated fluorinated compounds by semipermeable membrane
11/11/1998EP0876320A1 Process for the production of fluoromethylhexafluoroisopropylether
11/11/1998CN1198431A Light hydrocarbon etherifying technology
11/05/1998WO1998049128A1 Process for preparing a (hetero)aromatic olefin
11/05/1998WO1998048806A1 Indene compounds having activity as serms
11/05/1998CA2287244A1 Indene compounds having activity as serms
11/04/1998EP0874800A1 Indane dimer compounds with smooth muscle relaxing and/or mast cell stabilising and/or antiinflammatory activity
11/04/1998CN1197787A Phase transfer catalysis process synthesizing 2,2,2-trifluoroethyl difluoromethyl ether
11/03/1998US5831116 Partially oxidizing methanol
10/1998
10/29/1998WO1998047845A1 Single-step method for producing glycol monoethers from olefins
10/29/1998WO1998047844A1 SINGLE-STAGE METHOD FOR PRODUCING α-HYDROXY ETHERS BY OXIDIZING C=C-UNSATURATED COMPOUNDS WITH HYDROPEROXIDES
10/29/1998WO1998047837A1 Method for catalytic and selective oxidation of aromatic compounds
10/29/1998WO1998047477A1 Fragrance pro-accords
10/29/1998DE19736121A1 Einstufiges Verfahren zur Herstellung von alpha-Hydroxyethern durch Oxidation C=C-ungesättigter Verbindungen mit Hydroperoxiden Single-stage process for the preparation of alpha-hydroxy ethers by oxidation C = C unsaturated compounds with hydroperoxides
10/29/1998DE19717320A1 Einstufiges Verfahren zur Herstellung von Glykolmonoethern aus Olefinen Single-stage process for preparing glycol monoethers from olefins
10/29/1998DE19717176A1 Verfahren zur katalytischen und selektiven aromatischer Verbindungen Process for the catalytic and selective aromatic compounds
10/29/1998CA2286340A1 Single-step method for producing glycol monoethers from olefins
10/28/1998EP0873992A1 Indene compounds having activity as SERMs
10/28/1998EP0873301A1 Indane compounds with smooth muscle relaxing and/or mast cell stabilising and/or anti-inflammatory activity
10/28/1998EP0873289A1 Process for catalytic addition of nucleophiles to alkines or allenes
10/28/1998EP0759742B1 Physiologically acceptable emulsions containing perfluorocarbon ether hydrides and methods of use
10/28/1998EP0741688B1 Process for the separation of glycols from dimethyl terephthalate
10/28/1998EP0711268B1 Method for preparing alkoxylation products in the presence of additive-modified mixed hydroxides
10/22/1998WO1998046547A1 Process for preparing 2-aryl-substituted indenes
10/22/1998CA2258747A1 Process for preparing 2-aryl-substituted indenes
10/21/1998EP0871602A1 Preparation of fuel grade dimethyl ether
10/21/1998CN1196720A Novel vitamin D analogues
10/20/1998US5824825 Phosphoric acid catalyst and its use
10/20/1998US5824622 Porous microcomposite of perfluorinated ion-exchange polymer and metal oxide, a network of silica, or a network of metal oxide and silica derived via a sol-gel process
10/14/1998EP0739332B1 PROCESS FOR PRODUCING n-BUTYRALDEHYDE AND/OR n-BUTANOL
10/14/1998EP0711264B1 Process for the preparation of perfluoroalkyl iodide
10/14/1998CN1040204C Method for producing n-butyraldehyde and/or n-butanol
10/14/1998CN1040203C Process for preparation of alkoxylates using ester compounds as catalyst
10/13/1998US5821391 Process for preparing 3-oxyalkylpropan-1-ols
10/07/1998EP0869108A1 Process for the preparation of an ether and an olefin from a hydrocarbon fraction containing at least one tertiary olefin by synthesis followed by composition of the ether, comprising a fractionnation as a first olefin purification step
10/07/1998EP0869107A1 Process for the preparation of alpha olefins, tertiary olefins and/or ethers from an insaturated hydrocarbon fraction
10/06/1998US5817889 Process for the purification of a glycol solution
10/06/1998US5817888 Bromination process
10/06/1998US5817886 Process for production of alkyl ether of phenol and catalyst used therein
10/01/1998WO1998042644A1 Method for synthesising aromatically substituted olefins
10/01/1998DE19712388A1 Verfahren zur Synthese von aromatisch substituierten Olefinen Process for the synthesis of aromatic substituted olefins
10/01/1998CA2285021A1 Method for synthesising aromatically substituted olefins
09/1998
09/30/1998EP0867425A1 Method for recovering alkyl vinyl ether
09/30/1998EP0772575B1 Preparation of halogenated compounds
09/30/1998EP0734406B1 Polyglycerol production
09/30/1998CN1194258A Process for preparing halogeno-hydroxyl compound
09/30/1998CN1194257A Novel pulpous bed dimethyl ether synthesizing reaction technology and apparatus
09/29/1998CA2015574C Method for the preparation of methyl tertiary butyl ether
09/24/1998WO1998041494A1 Method for producing n-butyraldehyde and/or n-butanol
09/24/1998WO1998041493A1 Method for producing acetals
09/24/1998DE19710994A1 Verfahren zur Herstellung von n-Butyraldehyd und/oder n-Butanol A process for the preparation of n-butyraldehyde and / or n-butanol
09/24/1998DE19710993A1 Verfahren zur Herstellung von Acetalen A process for preparing acetals
09/24/1998CA2284521A1 Method for producing acetals
09/24/1998CA2282538A1 Method for producing n-butyraldehyde and/or n-butanol
09/23/1998EP0865419A1 Indane dimer compounds and their pharmaceutical use
09/22/1998US5811614 Catalytic norbornylation of aromatics
09/22/1998US5811597 Method for the manufacture of methyl tertiary butyl ether from tertiary butyl alcohol and methanol
09/22/1998US5811593 Made by reacting hydroquinone monoether with enol ether in presence of acid catalyst, reacting product with hydrogen transfer agent in presence of metal catalyst to cleave protecting group
09/22/1998US5811587 Process for the hydroxyalkylation of a carbocyclic aromatic ether
09/17/1998WO1998040414A1 A continuous process for effecting gas liquid reactions
09/17/1998CA2282601A1 A continuous process for effecting gas liquid reactions
09/16/1998EP0632811B1 Production of trifluorovinyl ethers
09/15/1998US5808161 Process for the production of diisopropyl ether and isopropanol employing a solvent
09/15/1998US5808112 Chemical intermediate for immunosuppressants and prostaglandins
09/15/1998US5807952 Process for producing phenolic compounds from lignins
09/11/1998WO1998039279A1 Novel 1,3-diphenylpropane derivatives having inhibitory activity against tyrosinase and process for preparation thereof
09/09/1998EP0863122A1 Process for the preparation of polyhydroxyethers and unsymmetrical polyhydroxyethers obtained by this process
09/09/1998EP0862545A2 Pesticide compounds, compositions and process for the preparation thereof
09/09/1998CN1192727A Syntheis of glycol ethers
09/09/1998CN1039708C Method for prepn. of diiodo-compound
09/02/1998EP0812305B1 Microporous amorphous mixed metal oxides for form-selective catalysis
09/02/1998EP0799091B1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
09/02/1998EP0731781B1 Process for conversion of crude hydrocarbon mixtures
09/01/1998US5801293 Method of isomerizing olefins
09/01/1998CA2099751C Etherification process
08/1998
08/26/1998EP0860416A1 Method of making trichloromethoxybenzene
08/26/1998EP0860414A1 Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process
08/26/1998EP0706506B1 Fluorinated bis-ethers and process for preparing them and fluorinated methyl ethers
08/26/1998CN1191156A Higher secondary alcohol alkoxylate compound composition, method for production thereof, and detergent and emulsifier using the composition
08/25/1998US5798412 Alkylene glycol production using carbon catalysts
08/25/1998CA2096928C Process for selectively ortho-fluorinating substituted aromatic compounds
08/24/1998CA2222104A1 Method of making trichloromethoxybenzene
08/21/1998CA2229474A1 Use of aluminum phosphate as the dehydration catalyst in single step dimethyl ether process
08/19/1998EP0690835B1 Formylation process for aromatic aldehydes
08/18/1998CA2013781C Aromatic aldehydes, their derivatives and their utilization as perfuming ingredients
08/13/1998WO1998034931A1 Process for the manufacture of epoxy compounds
08/13/1998WO1998034930A1 Process for the manufacture of epoxy compounds
08/13/1998WO1998030529A3 Preparation of carboxylic compounds and their derivatives
08/13/1998WO1998030528A3 Production of racemic 2-(6-methoxy-2-naphthyl)propionic acid or precursors thereof
08/13/1998CA2279973A1 Process for the manufacture of epoxy compounds
08/13/1998CA2279972A1 Process for the manufacture of epoxy compounds
08/12/1998EP0857711A1 Process for the preparation of halogenated hydroxy diphenyl compounds
08/11/1998US5792899 Process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation reaction zone
08/11/1998US5792891 Integrated process for the production of tame
08/11/1998US5792890 Method for the purification of tertiary butyl alcohol for use in the manufacture of methyl tertiary butyl ether
08/11/1998US5792886 Methylation of 6-bromo-2-naphthol with methyl bromide to 2-bromo-6-methoxynaphthalene; forming grignard; reacting with a lower alkyl 2-bromopropionate
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