Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
08/2004
08/25/2004CN1163457C Combined process for comprehensive utilizing cracked C5
08/19/2004US20040161404 Method for producing coupling compound
08/19/2004DE4326169B4 Verfahren zur Herstellung von unsymmetrischen Bisarylverbindungen A process for the preparation of unsymmetrical Bisarylverbindungen
08/19/2004DE10304006B3 Continuous method for preparing Grignard adducts, on column of magnesium turnings through which a mixture of halide and cyclohexanone reactant is passed, optionally with direct hydrolysis and dehydration to cyclohexene derivative
08/18/2004EP1220851B1 Carbon dioxide-philic compounds and methods of synthesis thereof
08/18/2004EP1030854B1 Catalysts for asymmetric synthesis containing rigid chiral ligands
08/18/2004EP0977548B1 Fragrance pro-accords
08/18/2004CN1521170A Process of reutilization of poly ethylene glycol monomethyl ether byproducts from the reaction of methanol and ethylene oxide
08/18/2004CN1162387C Process for preparing isoolefine and/or tertiary alkylether
08/18/2004CN1162386C Process for directly converting methanol to alcohol-ether fuel
08/12/2004DE10303881A1 Verfahren zur Herstellung von oligomeren aliphatischen Diolen, darauf basierenden Polycarbonatdiolen und deren Prepolymeren A process for the preparation of oligomeric aliphatic diols, polycarbonate diols and their prepolymers based on them
08/11/2004EP1444241A2 Bidendate ligands for the carbonylation of unsaturated compounds
08/11/2004EP1444176A2 Bidentate ligand for the telomerization of dienes
08/11/2004EP1404636A4 Integrated process for synthesizing alcohols and ethers from alkanes
08/11/2004CN1519220A Method for producing ether
08/11/2004CN1161313C Process for making butyl ethers of glycols
08/10/2004US6774270 Method of removing hexafluoropropylene dimers
08/10/2004US6774267 Reacting a phenol compound with an aldehyde containing dialkoxymethyl or 1,3-dioxolan-2-yl group in presence of a base
08/10/2004CA2070598C Production of bis(fluoromethyl)ether and difluoromethane
08/05/2004WO2004065343A2 Polycondensation method employing dielectric heating, in particular for the production of polyglycerols and similar
08/05/2004WO2004065338A1 Method for producing butene oligomers and tert-butyl ethers from c4 flows containing isobutene
08/05/2004WO2004065006A1 Process for production of ethers
08/05/2004WO2004014550A3 Novel nickel-carbene, palladium-carbene and platinum-carbene complexes, their production and use in catalytic reactions
08/05/2004US20040152925 Continuous process for the preparation of polytrimethylene ether glycol
08/05/2004US20040152861 Process for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and prepolymers thereof
08/05/2004US20040149957 Ultraviolet radiation resistance; outdoor use; synthesis
08/05/2004CA2513737A1 Process for production of ethers
08/04/2004EP1443066A2 Process for the preparation of oligomeric aliphatic diols, polycarbonatediols prepared using these oligomeric aliphatic diols and their prepolymers.
08/04/2004EP1442779A1 Process for purifying fluoroxy compounds
08/04/2004EP1442098A2 Fischer tropsch composition and process
08/04/2004EP1442003A1 Method for production of polyolalkyl ethers
08/04/2004EP1183224B1 Process for preparing alkoxy or arylmethoxy aroxyethanes
08/04/2004EP0906299B1 Process for preparing tetrahydrofuran from dialkoxybutenes
08/04/2004CN1518534A Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
08/04/2004CN1160300C Process for preparation of acetic acid
08/04/2004CN1160297C Method and apparatus for continuous synthesis of vinyl isobutyl ether
08/04/2004CN1160296C Synthesis of propylene glycol ether and the catalyst applied
08/03/2004US6770788 Reacting a substituted 1-bromo-1-fluoro-3-aryl-1-propene an arylmethyl zinc compound in the presence of a palladium catalyst and a solvent
08/03/2004US6770776 Synthesis of fluorocarbon compounds
08/03/2004US6770463 Process for the preparation of chiral isofluoroenes
08/03/2004CA2067321C Perfluoropolyoxyalkylene endowed with a high viscosity and a low peroxide oxygen content, and process for preparing them
07/2004
07/29/2004WO2004063131A1 Method of purifying reduced coenzyme q
07/29/2004US20040147789 Allyl esters substituted by a difluoromethylene group, their process of synthesis and their use, and a process for functionalizing a double bond
07/29/2004US20040147757 Method for producing allyl compound, and ether or ester compound produced thereby
07/29/2004US20040147392 Catalysis using halophosphine compounds
07/29/2004US20040146454 Process for purifying fluoroxy compounds
07/29/2004DE19949237B4 Vorstufenverbindung für Radiodiagnostika und Verfahren zu ihrer Herstellung Precursor for radio diagnostics and process for their preparation
07/28/2004EP1280752B1 Method for producing 2-alkyl-3-chlorophenols
07/28/2004EP0900775B1 Process for producing catechol derivatives
07/28/2004CN1515532A Process for producing dihydric alcohol butyl ether
07/28/2004CN1159270C Method for producing surfactant alcohols and surfactant alcohol ethers, resulting products and their use
07/27/2004US6767923 Benzhydryl derivatives
07/27/2004US6767565 Recovering lignans from plants; obtain plant biomass, expose to extraction solvent, separate solid plant material, remove microorganism from extraction solution, recover lignan
07/22/2004WO2004018553A8 Methods for preparing ethers, halogenated ethers, fluoroethers as well as uses of the latter in fire extinguishing systems.
07/22/2004US20040143023 Materials and methods for synthesizing stilbenes
07/21/2004EP1439157A2 Method for producing Suzuki coupling compound catalysed by a nickel compound
07/21/2004EP1438315A2 Improved precursors for chemical vapour deposition
07/21/2004EP1438280A1 Novel norbornane and norbornene derivatives, use thereof and perfumed products containing same.
07/21/2004CN1513826A Method of extracting bi-(2-chloroisopropyl) ether
07/21/2004CN1513825A Dimethyl ether separation technological method
07/21/2004CN1158235C Prepn process of tri-and tetra-glycol methyl ether
07/21/2004CN1158228C Productive process for isoalkene and/or tertiary alkyl ether
07/20/2004US6765116 Adding and dissolving the rare earth salt in a c9-c30 active hydrogen containing organic compound; adding phosphoric acid to the rare earth/organic solution to produce fluid rare earth phosphate catalyst
07/20/2004CA2267153C Synthesis of aryl ethers, methods and reagents related thereto
07/15/2004WO2004037760A3 Process for producing optically active 2-alkoxy-1-(trifluoromethyl-substituted phenyl)ethanol derivatives
07/14/2004EP1436254A1 Synthesis of oxygen-substituted benzocycloheptenes, used as valuable intermediate products for producing tissue-selective oestrogens
07/14/2004CN1511817A Process for producing alpha-asarone raw material
07/14/2004CN1157357C Preparation of cyclopropane esters
07/13/2004US6762330 Making biaryls by reacting a grignard reagent and an aryl halide in the presence of a transition metal complex with a phosphine oxide or phosphine sulfoxide (hp(=s) type) as catalyst
07/13/2004US6762329 Diaryl ether condensation reactions
07/13/2004US6762279 Polyol processing
07/08/2004WO2004056734A1 Process for producing anthracene diether
07/08/2004WO2004056733A1 A microwave induced process for the preparation of substituted 4-vinylphenols
07/08/2004US20040133047 Synthesis of 2-aryl-1-naphthol derivatives via a tandem palladium catalyzed arylation and dehydrogenation
07/07/2004EP1435349A2 Integrated process for synthesizing alcohols and ethers from alkanes
07/07/2004CN1511130A Uncatalysed addition reactions
07/07/2004CN1510021A Method for preparing dimethyl ether by crude carbinol
07/07/2004CN1156424C Process for preparing trifluomethoxybenzene
07/06/2004US6759554 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
07/01/2004US20040127752 e.g., trimethoxytoluene by reacting the corresponding benzoic acids, benzoic esters or benzoic anhydrides with hydrogen in the presence of a catalyst.
07/01/2004US20040126367 Oxidation resistance; storage at low temperature; overcoated with liposomes from soybean lecithin
07/01/2004US20040126295 Destroying alkali halide in gas streams
07/01/2004US20040124076 Mixing with hexafluoroisopropanol; adjust vapor pressure; separation by distillation
06/2004
06/30/2004EP1432666A1 Method for producing 1-olefins using palladium carbene compounds
06/30/2004CN1508110A Method for preparing alkoxy compound by oxyalkylation
06/30/2004CN1508109A Method for preparing alkoxy compound by oxyalkylation
06/29/2004US6756512 Reacting 2-alkyl-1,3-dichlorobenzene with base in high boiling diluent; catalysis; continuous water removal; etherification, dechlorination
06/24/2004WO2004052939A2 Ligands for metals and improved metal-catalyzed processes based thereon
06/24/2004US20040118673 Microwave induced process for the preparation of substituted 4-vinylphenols
06/24/2004DE10351434A1 Preparation of 2-alkyl-6-(het)aryl-difluoromethoxy-naphthalene, -tetralin and -decalin compounds, for liquid crystal display, involves converting naphthalene compound into carboxylic acid derivative and reaction with phenol compound
06/23/2004EP1430165A2 Method for producing orthocarboxylic acid trialkyl esters
06/22/2004CA2084016C Process for the preparation of substituted indenes and their use as ligand systems for metallocene catalysts
06/17/2004WO2004050594A1 Method for producing naphthalene derivatives
06/17/2004US20040116617 Polymer-supported arylbis(perfluoroalkylsulfonyl)-methane
06/17/2004US20040116538 Method for the preparation of 2-{2-[4-(4-chloro-1,2-diphenylbut-1-enyl)phenoxy}ethanol and its isomers
06/16/2004CN1505598A Single-step method for producing toluene derivatives
06/16/2004CN1504447A Preparing process for alkyne-ether
06/16/2004CN1153765C 4-aryl-1-phenylalkyl-1,2,3,6-Tetrahydropyridines having neurotrophic and neuroprotective activity
06/15/2004US6750372 Process for producing aryl ether
06/10/2004WO2004048318A1 Improved process for the preparation of 1,3-substituted indenes
1 ... 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 ... 173