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)
01/1990
01/10/1990EP0350113A1 Liquid crystalline polyesters
01/10/1990EP0350112A1 Polyurethanes prepared from non-linear optical active diols
01/10/1990EP0349963A2 Process for preparing perfluoro-(2-bromoethylvinylether)
01/09/1990US4892977 Containing phosphorus, narrow molecular weight distribution
01/09/1990US4892940 Aromatic naphthyl compounds, a process for their preparation and their use in human and veterinary medicine and in cosmetic compositions
01/09/1990US4892916 Polymeric thickeners and their production
01/09/1990CA1264392A1 Allyl terminated macromolecular monomers of polyethers
01/03/1990EP0349218A2 Separation of 3,3,',4,4'- and 2,3,3',4'-tetramethyldiphenyl ether
01/03/1990EP0348981A2 Process for preparing fluorinated conjugated olefinic products
01/03/1990EP0348980A2 Telomers of 1,2-dichloro-1,2-difluoroethylene and process for preparing them
01/03/1990EP0348948A2 Process for production of polyfluorocarbon iodide
01/03/1990EP0259417B1 Ruthenium catalyst for biarylic coupling; new steganolides
01/02/1990US4891451 Preparation of vinyl ethers
01/02/1990US4891450 Fluorine-containing arylalkenes
01/02/1990US4891448 Acidic mordenite catalyst
01/02/1990US4891432 Phenoxy imidazole compound
12/1989
12/27/1989EP0347677A1 Process for the production of aryloxy-chlormethanes
12/27/1989CN1038274A Synthesis for hydrolytic nonionic composite and its surface active agent
12/27/1989CN1006224B New functionalized perfluoropolyethers and process for the prepn.
12/26/1989US4889939 Lubricants
12/26/1989US4889656 Surfactants
12/20/1989EP0347064A1 Preparation of nonionic surfactants by oxyalkylation with a magnesium catalyst
12/19/1989CA1263965A1 Production of ethers from linear olefins
12/13/1989EP0346276A1 Substituted benzocyclobutenes, process for their preparation and their use
12/13/1989EP0346250A1 Process for the hydroxylation of phenols and phenol ethers
12/13/1989EP0345861A1 Alkoxylation process catalyzed by compounds of the rare earth elements
12/13/1989CN1006063B Process for the preparation of hydroquinone clerivatives
12/12/1989US4886925 Olefins interconversion and etherification process
12/12/1989US4886918 Olefin hydration and etherification process employing serially staged olefin introduction
12/12/1989US4886917 Alkoxylation using calcium catalysts and products therefrom
12/12/1989US4886907 Polysubstituted derivatives of naphthalene, their process of preparation and their application in the cosmetic and pharmaceutical fields
12/12/1989US4886891 Process for preparing 1,1-disubstituted ethylene derivative by reaction of lead with a carbinol derivative
12/06/1989EP0344935A2 Photo-assisted solution phase direct fluorination process improvement
12/06/1989EP0344835A1 Narrow range alkanol alkoxylates
12/06/1989EP0344557A2 Liquid crystal components with a trimethylenoxy group
12/05/1989US4885421 Multistage reactor system for production of fuels
12/05/1989US4885408 Chlorination of ortho-substituted phenols
12/05/1989US4885405 Process for the production of pure dimethylether and a catalyst used in the process
12/05/1989US4885404 High yields
12/05/1989US4885403 Stirring hydroxy aromatic compound with propargyl halide; etherification
12/05/1989US4885402 Process for preparing nonionic surfactants from glycerol monochlorohydrin, in an aromatic solvent medium, products obtained and compositions containing them
12/05/1989US4885372 Intermediates for the preparation of prostaglandin derivatives
11/1989
11/30/1989WO1989011463A1 Olefins interconversion and etherification process
11/29/1989EP0343798A1 Preparation of aromatic compounds and derivatives thereof
11/29/1989EP0343468A2 Method of producing E7, Z9-alkadien-1-ols and their hydroxy-protected derivatives
11/29/1989EP0343454A2 Process for the preparation of dimethyl ether
11/29/1989EP0343441A2 Fluorinated bis-aryloxy-substituted alkenes, method for their production an their application
11/28/1989US4883887 Sulfone polyene intermediates
11/28/1989CA1263412A1 Preparation of alkoxy halides
11/28/1989CA1263411A1 Preparation of alkoxy halides
11/28/1989CA1263409A1 Phenols and use thereof as stabilisers
11/16/1989WO1989010912A1 Method of preparing aromatic ethers from iodoaromatic compounds
11/15/1989EP0341538A1 1-Tert.-butoxy-omega-alkenes and their use in aroma compositions
11/15/1989EP0341514A2 Process for the preparation of asymmetrical biaryle compounds
11/15/1989EP0341393A1 Method for the single step synthesis of methyl-tert.butyl ether from tert.butanol using supported rhenium catalysts
11/15/1989EP0341295A1 Process for producing 4,4'-dibromodiphenyl ether
11/14/1989US4880894 Quaternary ammonium salts used as phase transfer catalyst
11/14/1989US4880620 Perfluorinated surface-active oligomers, process for their preparation and compositions containing these oligomers
11/14/1989CA1262920A1 Process for producing a halobenzene
11/08/1989EP0341113A1 Process for the manufacture of halophenols
11/08/1989EP0341005A1 Process for the production of fluorinated ethers
11/08/1989EP0341004A2 A method of preparing 2-(difluoromethoxy)-1,1,1,2-tetrafluoroethane
11/08/1989EP0340739A2 Process for preparing perfluoropolyethers of controlled molecular weight having perfluoroalkyl or perfluorochloralkyl end groups
11/08/1989EP0340710A2 3,9 Dihydroxynonine and its in the 9-OH function protected derivatives
11/08/1989EP0340593A2 Use of esters of titanic and/or zirconic acid as ethoxylation or propoxylation catalysts
11/08/1989EP0340576A2 Process for recovering pure dimethyl ether (DME)
11/08/1989EP0340324A2 Process for the preparation of pure dimethyl ether
11/08/1989EP0182872B1 A process for the preparation of cyclobutene-substituted aromatic hydrocarbons
11/07/1989US4879426 Palladium-catalyzed arylation of cycloalkenes
11/07/1989US4879389 Hydrogenation catalysts
11/07/1989US4878939 Fungicidal and plant-growth regulating azolyl ether ketones and alcohols
11/02/1989EP0339987A2 Liquid crystal compounds having naphthalene nucleus
11/02/1989EP0339426A2 Use of calcined hydrotalcites as ethoxylation or propoxylation catalysts
11/01/1989CN1036711A Carbon dioxide calcination of methanol dissociation catalysts
10/1989
10/31/1989US4877891 Intermediates for e7,z-9-dodecadienyl acetate
10/31/1989US4877740 Production of cells
10/31/1989US4877529 Separation of organic liquids
10/31/1989US4877220 Hexasubstituted cyclohexane compounds
10/25/1989EP0338898A1 Process for the preparation of an ortho-substituted mono-brominated derivative of phenol
10/25/1989EP0338530A2 Fluorine-containing polyether and nonionic surfactant comprising the same
10/25/1989EP0338309A2 Process for the isomerisation of alkenes with a terminal double bond to internal alkenes
10/25/1989EP0338306A2 Halogen-substituted phenoxybenzyl compounds
10/25/1989EP0338054A1 Cross coupling of titanium organyls
10/25/1989CN1036575A "bis-(hydroxymethyl) cyclobutyl purines and pyrimidines
10/24/1989US4876394 Process for the production of methyl tert.-alkyl ethers
10/24/1989US4876381 Naphthalene derivatives possessing a retinoid-type action, processes for their preparation, and medicinal and cosmetic compositions containing these derivatives
10/24/1989US4876370 1,3,5-nonatriene derivatives, their preparation and their use
10/19/1989WO1989009810A1 Olefins etherification and conversion to liquid fuels with paraffins dehydrogenation
10/19/1989WO1989009760A1 Etherification of extracted crude methanol and conversion of raffinate
10/19/1989WO1989009759A1 Extraction of crude methanol and conversion of raffinate
10/18/1989EP0337937A2 Ethoxylate and carboxylate derivatives of alkyl catechols
10/18/1989EP0337743A2 Improved process for preparing fluorocarbon polyethers
10/18/1989EP0337260A1 Process for the production of enol ethers and their use in the preparation of aldehydes
10/18/1989EP0337239A2 Use of alkaline earth salts of polycarboxylic acid monoesters as alkoxylation catalysts
10/17/1989US4874901 Process for the production of polyfluorinated ethers
10/17/1989US4874780 Anticancer compounds
10/17/1989US4874488 Photochemical dimerization and functionalization of alkanes, ethers, primary and secondary alcohols, phosphine oxides and silanes
10/11/1989EP0336263A2 Process for the preparation of fatty alcohol polyglycol ethers with reduced residual EO or PO content
10/11/1989CN1036199A Method for pure dimethyl ether prodn.
10/10/1989US4873373 Process for preparation of 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers
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