| Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
|---|
| 02/10/2004 | US6689290 Family of conducting liquid crystals |
| 02/05/2004 | WO2004011523A2 Novel phase change solvents |
| 02/05/2004 | WO2003070669A3 Modified method for producing surfactant alcohols and surfactant alcohol ethers, the products of said method and use of the same |
| 02/05/2004 | US20040024263 Process for preparing aryl allyl ethers |
| 02/05/2004 | US20040024261 Process for preparing butanetriol derivative |
| 02/05/2004 | US20040024260 Process for preparing acetals and ketals with the aid of multistage pervaporation or vapor permeation |
| 02/05/2004 | US20040024257 Method for sulphonylating a hydroxylated organic compound |
| 02/05/2004 | US20040024250 Perfluoropolyether primary bromides and lodides |
| 02/05/2004 | US20040024249 Hydrofluoroethers having at least one hydrogenated-OCFX'CH3 end group wherein X'=F, CF3 and their preparation process |
| 02/05/2004 | US20040024202 C-17 spirolactonization and 6,7 oxidation of steroids |
| 02/05/2004 | US20040021130 Novel phase change solvents |
| 02/05/2004 | US20040020757 Process for the mild distillative separation of mixtures |
| 02/05/2004 | DE4434823B4 Verfahren zur Herstellung von Hydroxybenzylalkylethern A process for preparing Hydroxybenzylalkylethern |
| 02/05/2004 | DE10233231A1 Verfahren zur Herstellung von Ketalen und Enolethern Process for the preparation of ketals and enol ethers |
| 02/04/2004 | EP1386905A1 Stable solution of reduced coenzyme q |
| 02/04/2004 | EP1385811A1 Process for the production of fluoromethyl hexafluoroisopropyl ether |
| 02/04/2004 | EP1385806A2 Single-step method for producing toluene derivatives |
| 02/04/2004 | CN1473149A Method for sulphonylating hydroxylated organic compound |
| 02/03/2004 | US6686495 In presence of palladium catalyst; useful in producing chemical intermediates for pharmaceuticals, optical brightening agents and agrochemicals |
| 02/03/2004 | CA2086219C Process for the neutralization of perfluoropolyoxyalkylenes |
| 02/01/2004 | CA2435920A1 Hydrofluoroethers having at least one hydrogenated -ocfx'ch3, end group wherein x'=f, cf3 and their preparation process |
| 01/29/2004 | WO2004009539A2 Method for the conversion of a z-isomer into e-isomer |
| 01/29/2004 | WO2004009523A1 Method for the production of ketals and enol ethers |
| 01/29/2004 | US20040019237 Hexafluoroisobutylene and higher homologs are reacted with sulfur trioxide to give fluorosulfates; reaction provides route to substituted hexafluoroisobutylenes which copolymerize with fluoro- and hydrocarbon monomers |
| 01/29/2004 | US20040019216 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 01/29/2004 | US20040016906 Difluoromethyl ether derivative and process for producing the same |
| 01/28/2004 | EP1383724A1 A new method for the preparation of 2- 2- 4-(4-chloro-1,2-diphenylbut-1-enyl)phenoxy]ethoxy ethanol and its isomers |
| 01/28/2004 | CN1471502A Oxidative halogenation of aromatic compound |
| 01/28/2004 | CN1136177C Process for purifying fluoromethyl 1,1,1,3,3,3-hexafluoro-isopropyl ether |
| 01/28/2004 | CN1136176C Production of fluoroether |
| 01/22/2004 | WO2004007412A1 Method for producing high-purity methyl tert-butyl ether |
| 01/22/2004 | WO2003040065A3 Bidentate ligand for the telomerization of dienes |
| 01/22/2004 | US20040015020 Treating an isomeric mixture of (Z and E)-1-(3,5-disubstituted phenyl)-2-(4- substituted phenyl) ethene with a halogen as catalyst, in organic solvent, quenching in water, reducing the halogen using reducing agent |
| 01/22/2004 | US20040014633 Ethers of 2,2,4-trimethylpentane-1,3-diol as fragrance materials |
| 01/22/2004 | DE10312829A1 Verfahren zur Telomerisation von nicht cyclischen Olefinen Process for telomerizing noncyclic olefins |
| 01/22/2004 | DE10231051A1 Verfahren zur Herstellung von hochreinem Methyl-tert.-butylether A process for the preparation of high purity methyl tertiary butyl ether |
| 01/21/2004 | EP1381586A1 Process for the purification of fluoromethyl hexafluoroisopropyl ether |
| 01/21/2004 | EP1381585A1 Process for the purification of fluoromethyl hexafluoroisopropyl ether |
| 01/20/2004 | US6680406 Condensation polymerization of tetrahydrofuran to esterified polyoxyalkylene glycols, in the presence of polymerization catalysts comprising fluoropolymers dispersed in catalyst support networks |
| 01/15/2004 | WO2004005231A1 Fluorinated unsaturated compound and process for producing the same |
| 01/15/2004 | WO2004005230A1 An alkoxylate mixture and its use as a cleaning agent for hard surfaces |
| 01/15/2004 | US20040010149 Ligand for transition metal complex catalyst |
| 01/14/2004 | EP1380559A1 Ethers of 2,2,4-trimethylpentane-1, 3-diol as fragrance materials |
| 01/14/2004 | CN1468248A Use of chiral diphosphines as optically active ligands |
| 01/14/2004 | CN1468206A Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds |
| 01/14/2004 | CN1134300C Bimetallic-cyanide catalysts used for preparing polyether polyols |
| 01/13/2004 | US6677338 Serotonin transport inhibitors |
| 01/08/2004 | WO2004002932A1 Fluorine-containing alcohols and process for production thereof |
| 01/08/2004 | WO2004002931A1 Method for the telomerisation of non-cyclic olefins |
| 01/08/2004 | WO2003040159A3 Bidentate ligands for the carbonylation of unsaturated compounds |
| 01/08/2004 | WO2003027357A3 Method for producing orthocarboxylic acid trialkyl esters |
| 01/08/2004 | US20040006246 Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes |
| 01/08/2004 | US20040006235 Process for the preparation of ring compounds |
| 01/08/2004 | US20040004207 Difluoromethyl ether derivative and process for producing the same |
| 01/07/2004 | EP1292556B1 Catalytic dehydroxylation of diols and polyols |
| 01/07/2004 | CN1466563A Process for producing fluorinated ester compound |
| 01/07/2004 | CN1465559A Recovery and utilization for waste triglycol |
| 01/06/2004 | US6673971 Preparation of 1,1,4,4-tetramethoxy-2-butene |
| 01/02/2004 | EP1375532A1 Polymer-supported arylbis(perfluoroalkylsulfonyl)-methane |
| 01/02/2004 | EP1375462A1 Process of separating 1-methoxy-2-propanol and 2-methoxy-1-propanol from aqueous compositions |
| 01/02/2004 | EP1373287A1 Process for obtaining lignan, pharmaceutical compositions and uses thereof |
| 01/02/2004 | EP1373277A1 Organometallic building materials and method for producing the same |
| 01/02/2004 | EP1175379B1 Method for the asymmetric dihydroxylation of olefins, using osmium catalysts |
| 01/01/2004 | US20040000473 Separation of solvent by distillation |
| 12/31/2003 | WO2004000773A1 Process of separating 1-methoxy-2-propanol and 2-methoxy-1-propanol from aqueous compositions |
| 12/30/2003 | US6670511 Fluorine-containing diene, its production method and its polymer |
| 12/30/2003 | CA2123100C Production of bis(fluoromethyl)ether and/or difluoromethane from formaldehyde and hydrogen fluoride |
| 12/25/2003 | WO2003106535A1 Process for purification of crude polyether and adsorbent |
| 12/25/2003 | US20030236268 Process for the preparation of piperidinylaminomethyl trifluoromethyl cyclic ether compounds |
| 12/24/2003 | WO2003106024A1 Process for producing ether compounds in presence of a copper (ii) salt |
| 12/24/2003 | WO2003042135A3 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 12/24/2003 | CN1462735A Method for synthesizing diaryl ether by using amino acid as additive |
| 12/18/2003 | WO2003104177A1 Process for producing allyl ether |
| 12/18/2003 | WO2003104168A2 Process and apparatus for catalytic distillations |
| 12/18/2003 | US20030232940 For producing polymer having transparency and low refractive index in a wide wavelength region from vacuum ultraviolet region to optical communication wavelength region, adhesion to the substrate, film forming property, etching resistance |
| 12/17/2003 | EP1371624A1 Process for the production of 2-Chloro-1,1,1-trialkoxyethane |
| 12/17/2003 | EP1370600A1 Method for processing polyether alcohols |
| 12/17/2003 | CN1131191C 1,4-diaryl-2,3-difuror-2-butene insecticidal and acaricidal agents |
| 12/16/2003 | US6664429 Unsaturated fatty alcohol polyglycol ethers which, through the presence of branches in the hydrocarbon chain, are distinguished from linear homologs by significantly improved properties |
| 12/16/2003 | US6664380 Catalyst for process involving carbon-carbon bond formation |
| 12/16/2003 | US6664207 Catalyst for converting carbon dioxide to oxygenates and processes therefor and therewith |
| 12/16/2003 | CA2028666C Separation of 1-methoxy-2-propanol and water |
| 12/11/2003 | US20030229256 Bifunctional biphenyl and process for producing bifunctional phenylene ether oligomer compound using the same |
| 12/11/2003 | US20030229255 Preparation of 2-chloro-1,1,1-trialkoxyethane |
| 12/10/2003 | EP1369405A1 Process for producing 1-chloro-4-arylbutane |
| 12/10/2003 | EP1368287A1 Process for a homogeneously catalyzed c-c coupling reaction |
| 12/10/2003 | EP1202948B1 Processes for the preparation of 2-arylvinyl alkyl ether and 1,4-diaryl-2-fluoro-2-butene compounds |
| 12/10/2003 | EP1175380B1 Preparation of selected fluoroolefins |
| 12/10/2003 | CN1461292A 1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents |
| 12/10/2003 | CN1461235A Novel antimony catalyst compositions |
| 12/09/2003 | US6660890 Production of optically active α-hydroxyacetals |
| 12/09/2003 | US6660884 Catalysts, methods for making said catalysts, and methods for making chiral compounds with high enantioselectivity |
| 12/04/2003 | WO2003080239A3 Method for preparing metal cyanide catalysts using insoluble metal salts |
| 12/03/2003 | EP1366008A2 Method for producing monocarbonyl compounds or biscarbonyl compounds or hydroxyl compounds |
| 12/03/2003 | CN1459442A Energy saving separation technology of refining dimethyl ether and recovery carbon dioxide at the same time |
| 12/02/2003 | US6657093 Preparation of substituted aromatic compounds |
| 12/02/2003 | US6657090 Reacting a C4-hydrocarbon stream that contians isobutene with methanol over an acid catalyst at a pressure of 3-15 bar abs., a temperature of 55-75 degrees C., and a reflux ratio of <1 |
| 12/02/2003 | US6657089 Palladium catalyst and process for producing ether |
| 12/02/2003 | US6656978 Gas feed is mixed with H2O to obtain a mixed gas having specific CO2, H2O and lower hydrocarbon contents. |
| 11/27/2003 | WO2003097588A2 Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives |