| Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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| 06/01/1999 | US5908943 Prepared by (i) reacting an allyl derivative of an active hydrogen-containing compound with (ii) a peroxygen-containing compound. |
| 05/26/1999 | EP0799261B1 Process for preparation of allyl ether, thioether and amine compounds |
| 05/26/1999 | CN1217709A Noval 1,3-diphenyl propane derivative having inhibitory activity against tyrosinase and process for preparing same |
| 05/26/1999 | CN1217315A Glycol decolouring process |
| 05/25/1999 | US5907072 Dehydroisomerization of isoolefin with alkyl alcohol |
| 05/25/1999 | US5907069 Production of nabumetone or precursors thereof |
| 05/25/1999 | US5907067 Catalyzing in presence of a calcined hydrotalcite catalyst, producing the mosquito controller material which is readily dispersed in water, free of by-product the nozzle-clogging material |
| 05/25/1999 | CA2124522C A method of preparing ortho esters |
| 05/20/1999 | WO1999024443A2 Catalysts for asymmetric synthesis containing rigid chiral ligands |
| 05/20/1999 | WO1999024384A1 Methods for decomposing esters and purifying alcohols |
| 05/20/1999 | CA2309193A1 Catalysts for asymmetric syntheses containing rigid chiral ligands |
| 05/20/1999 | CA2307803A1 Methods for decomposing esters and purifying alcohols |
| 05/19/1999 | EP0916640A1 1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents |
| 05/12/1999 | EP0915091A2 Process of preparation of five- or sixmembered cyclic ethers, in particular anhydropolyols |
| 05/12/1999 | EP0915075A1 Process for intermolecular etherification and ether cleavage |
| 05/12/1999 | EP0914854A2 Apparatus and process for generating mixed multi-component vapor |
| 05/12/1999 | EP0583433B1 Diphosphine ligands |
| 05/12/1999 | CN1043343C Method for producing dimethyl ether from methyl alcohol |
| 05/12/1999 | CA2253324A1 1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents |
| 05/11/1999 | US5902909 Compounds used in production of fluorescent whitening agents |
| 05/11/1999 | US5902908 Method for preparing fluorinated vinyl ether |
| 05/11/1999 | CA2114205C Integrated production of fuel gas and oxygenated organic compounds from synthesis gas |
| 05/06/1999 | WO1999021814A1 Method for the preparation of dimethyl ether |
| 05/06/1999 | EP0913381A1 Method for purifying a bromine compound |
| 05/06/1999 | EP0912479A1 Process for the manufacture of oxygenates |
| 05/06/1999 | EP0912474A1 Process using cf 2?i 2? and olefins for producing diiodo fluorocompounds, and products thereof |
| 05/06/1999 | EP0912465A1 Improved lithium and amine dissolving metal reduction |
| 05/06/1999 | EP0742806B1 Polyglycerol production |
| 05/05/1999 | CN1215716A Process for preparing dimethyl ether from synthetic gas |
| 05/05/1999 | CN1043225C Process for preparing dimethyl ether by catalytic distillation |
| 05/04/1999 | US5900519 Catalytic process for the selective alkylation of polycyclic aromatic compounds |
| 05/04/1999 | US5900502 Fluorination process |
| 05/04/1999 | CA2025861C Process for the safe and environmentally sound production of highly pure alkylene oxide adducts. |
| 04/29/1999 | WO1999020588A1 Preparation of isoflurane by reaction of 2,2,2-trifluoroethyl difluoromethyl ether and chlorine in added water, at low temperatures and/or at higher conversions |
| 04/28/1999 | EP0911312A1 Fluorinated hydrocarbon compound and process for its preparation, and refrigerator oil and magnetic recording medium lubricant |
| 04/28/1999 | EP0911309A1 Process for producing fluorene or its derivatives |
| 04/28/1999 | EP0910560A1 Process for preparing 2-aryl-substituted indenes |
| 04/28/1999 | EP0802894B1 Process for preparing alkyl tertiary-alkyl ether |
| 04/27/1999 | US5898091 Selective hydrogenation, etherification, separation of oxygen containing impurities and methasis |
| 04/27/1999 | US5898086 Reducing a mono or diglyceride or polyol in hydrogen pressure in presence of heavy metal reducing catalyst to form alkyl ethr glycerols; useful as cleaning compound such as shampoo, bath gels and mild detergents |
| 04/22/1999 | WO1999019289A1 Recovery and recycle of catalyst components used in palladium-catalyzed preparation of arylcarboxylic acids |
| 04/22/1999 | WO1999019287A1 Process of preparing a mixture of dimethyl ether and methanol from carbon dioxide |
| 04/22/1999 | WO1999019284A1 Thermal process for the preparation of a telomeric alkyl iodide |
| 04/22/1999 | WO1999019275A1 Process for electrophilic aromatic substitution |
| 04/22/1999 | WO1999018793A1 Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids |
| 04/22/1999 | CA2306425A1 Recovery and recycle of catalyst components used in palladium-catalyzed preparation of arylcarboxylic acids |
| 04/22/1999 | CA2305614A1 Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids |
| 04/22/1999 | CA2304755A1 Thermal process for the preparation of a telomeric alkyl iodide |
| 04/21/1999 | EP0909267A1 Novel 1,3-diphenylpropane derivatives having inhibitory activity against tyrosinase and process for preparation thereof |
| 04/21/1999 | EP0643680B1 Process for preparing methyl and ethyl ethers |
| 04/21/1999 | EP0579797B1 Diphosphine ligands |
| 04/15/1999 | WO1999018057A1 Preparation of diaryl ether by condensation reactions |
| 04/15/1999 | WO1999017878A1 USE OF TRIS (TRIFLUORO METHYLSULFONYL) METHANE, IN ADDITION TO ALKALINE METAL SALTS AND ALKALINE-EARTH METAL SALTS THEREOF AS CATALYSTS DURING C-C BONDING SYNTHESES AND THE NOVEL Mg SALT OF TRIS (TRIFLUORO METHYLSULFONYL) METHANE |
| 04/15/1999 | DE19744702A1 Vicinal diols and/or vicinal hydroxy/alkoxy compounds |
| 04/14/1999 | EP0907629A1 Method for the preparation of dialkyl ethers |
| 04/14/1999 | CN1042930C Ether recovery |
| 04/13/1999 | CA2147513C Process to convert biomass and refuse derived fuel to ethers and/or alcohols |
| 04/13/1999 | CA2132320C Process and apparatus for preparing tertiary alkyl ethers |
| 04/13/1999 | CA2045553C Process for the preparation of vinyl ethers |
| 04/08/1999 | WO1999016735A1 Method for making acetal compounds |
| 04/08/1999 | DE19743985A1 New tris:tri:fluoromethyl-sulfonyl-methane and its salts used as catalysts e.g., in cycloaddition reactions |
| 04/07/1999 | EP0906899A1 Process for the separation of the divinylether of diethylenglycol or triethylenglycol from the monovinylether of the corresponding oligoethylenglycol |
| 04/07/1999 | EP0906299A1 Process for preparing tetrahydrofuran from dialkoxybutenes |
| 04/07/1999 | EP0696268B1 Ethylene glycol recovery process |
| 04/07/1999 | CN1213360A Stabilized monomer composition |
| 04/06/1999 | US5892131 Bromination 4-aryl-2-fluoro-2-buten-1-ol; reacting with boronic acid in presence of a palladium catalyst |
| 04/06/1999 | US5892129 Process for the preparation of 1,1,3-trialkoxypropane |
| 04/01/1999 | WO1999015487A1 Benzyl-biphenyls and analogous compounds and the application thereof in order to treat arteriosclerosis and dyslipidaemia |
| 04/01/1999 | WO1999000348A3 Thermal conversion of volatile fatty acid salts to ketones |
| 04/01/1999 | WO1998012164A3 PROCESS FOR PRODUCING n-BUTYLALKYL ETHERS |
| 04/01/1999 | CA2304274A1 Benzyl-biphenyls and analogous compounds and the application thereof in order to treat arteriosclerosis and dyslipidaemia |
| 03/31/1999 | EP0905115A1 Method for making acetal compounds |
| 03/31/1999 | EP0812308A4 Method for synthesis of aryl difluoromethyl ethers and the like |
| 03/31/1999 | CN1212238A New zinc/metal hexacyanocobaltate complex compositions, process for their preparation, and their use in process for production of polyether polyols |
| 03/30/1999 | CA2080115C Etherification process |
| 03/25/1999 | DE19741400A1 New benzyl-biphenyl derivatives |
| 03/24/1999 | EP0815068A4 Dimethyl ether production and recovery from methanol |
| 03/23/1999 | US5886240 Process for preparing aromatic acetylenes using palladacycles as catalysts |
| 03/23/1999 | US5886239 Method of preparing monofluoromethyl ethers |
| 03/23/1999 | US5886196 Method of catalyzing condensation reactions |
| 03/18/1999 | WO1999012873A1 Polymer gel and process for the activation of active hydrogen compounds |
| 03/18/1999 | DE19831705A1 Preparation of symmetric dialkyl ethers useful e.g. as oil component in cosmetics |
| 03/18/1999 | DE19740450A1 Preparation of symmetric dialkyl ethers useful e.g. as oil component in cosmetics |
| 03/17/1999 | EP0902000A1 A method of preparing 1, 1-Dialkoxycycloalkanes |
| 03/17/1999 | EP0901999A1 Method for the preparation of sevoflurane |
| 03/17/1999 | EP0728127B1 Synergistic process for the production of methanol |
| 03/16/1999 | US5882485 Extractive distillation |
| 03/11/1999 | WO1999011607A1 Method for producing a 1-(3-cyclopentenyloxy- 4-alkoxyphenyl)-4- oxocyclohexanecarbonitrile |
| 03/11/1999 | WO1999011594A1 Alkyl cyclohexanol alkoxylates and method for making same |
| 03/11/1999 | CA2302047A1 Method for producing a 1-(3-cyclopentenyloxy- 4-alkoxyphenyl)-4- oxocyclohexanecarbonitrile |
| 03/10/1999 | EP0900775A1 Process for producing catechol derivatives |
| 03/10/1999 | EP0900189A1 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom |
| 03/10/1999 | EP0900186A1 Process for the manufacture of hydroxycarbonyl compounds |
| 03/10/1999 | CN1210526A Process for preparing tetrahydrofuran from dialkoxybutenes |
| 03/10/1999 | CN1210100A Bromine compound production method |
| 03/09/1999 | US5880162 Pesticidal fluoroolefins |
| 03/03/1999 | EP0899254A2 Bromine compound production method |
| 03/03/1999 | EP0898556A1 A process for the production of hydrofluoroethers |
| 03/03/1999 | EP0898555A1 Process for making alkyl ether glycerols |
| 03/03/1999 | EP0626957B1 Styril derivatives and processes for their preparation |