Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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04/22/1998 | EP0837046A1 Process for preparing o-alkyl-fluoro-benzenes |
04/22/1998 | EP0766659B1 Fluoroalkylethoxylate compositions having enhanced water solubility |
04/22/1998 | EP0741686B1 New leukotriene b4 derivatives, methods of preparing them and their use as drugs |
04/22/1998 | EP0674611B1 Selective hydroxylation of phenol or phenolic ethers |
04/22/1998 | CN1179770A Preparation of cis- 4 -0 -protected -2 -cyclopentenol derivatives |
04/21/1998 | US5741953 Using acid cation exchange resin |
04/21/1998 | US5741952 Catalytic decomposition of peroxides to purify a methyl tertiary butyl ether recycle stream |
04/21/1998 | US5741951 Methyl tertiary butyl ether from methanol and tetriary butanol |
04/21/1998 | US5741950 Fluorinating heptafluoroisobutenyl methyl ether |
04/21/1998 | US5741949 Continuously feeding excess liquid bromine and non-fused aromatic compound to reaction zone to form mixture, continuously withdrawing after established residence time |
04/21/1998 | US5741948 Process for production of (poly) alkylene glycol monoalkyl ether |
04/21/1998 | US5741947 Etherification |
04/21/1998 | US5741946 Polyether lubricants and method for their production |
04/16/1998 | WO1998015515A1 Synthesis of aryl ethers, methods and reagents related thereto |
04/16/1998 | WO1998015509A1 Alkylation and acylation reactions |
04/16/1998 | CA2265777A1 Alkylation and acylation reactions |
04/15/1998 | EP0835858A1 Process for the purification of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether |
04/15/1998 | EP0835274A1 Hydroxy-substituted ethynylated biphenyls |
04/15/1998 | EP0835236A1 Purification of fluorinated dimethyl ethers |
04/15/1998 | EP0686138B1 2-methylbutoxy ethoxyethanol |
04/15/1998 | CN1178783A Method for preparing gamma-aldehyde tiglate |
04/14/1998 | US5739144 Trisubstituted phenyl derivatives |
04/09/1998 | WO1998014419A1 A method for producing glycols |
04/09/1998 | CA2268158A1 A method for producing glycols |
04/08/1998 | EP0834499A1 Process for the preparation of aromatic vinyl compounds |
04/08/1998 | CN1178519A Dimethyl ether production and recovery from methanol |
04/08/1998 | CN1178518A Process for alkoxylation of fluorinated alcohols |
04/02/1998 | WO1998013346A1 Stabilised monomer composition |
04/02/1998 | WO1998013327A1 Hydroxyalkylation of phenols |
04/01/1998 | EP0832873A1 Preparation of cyclopropane esters |
04/01/1998 | EP0832869A1 Process for producing ether compounds |
04/01/1998 | CN1177953A Process for the purification of fluoromethyl-1, 1, 1, 3, 3, 3 -hexafluoroisopropyl ether |
03/26/1998 | WO1998012172A1 Selective alkylation of an alcohol substituted phenol compound |
03/26/1998 | WO1998012165A2 Process for producing alkoxybutenes |
03/26/1998 | WO1998012164A2 PROCESS FOR PRODUCING n-BUTYLALKYL ETHERS |
03/26/1998 | DE19638868A1 Stabilisierte Monomerenzusammensetzung Stabilized monomer |
03/26/1998 | CA2265591A1 Process for producing alkoxybutenes |
03/26/1998 | CA2265494A1 Process for producing n-butylalkyl ethers |
03/25/1998 | EP0831083A1 Process for synthesizing benzoic acids |
03/25/1998 | EP0613485B1 Thermoplastic fluorocopolymers, and method of preparing fluoromonomer for use in the manufacture of the fluorocopolymer |
03/25/1998 | CN1176956A Process for separation of dimethyl ether and chloromethane in mixtures |
03/24/1998 | US5731477 Without using chlorofluorocarbon gases |
03/24/1998 | US5731476 Poly ether preparation |
03/24/1998 | US5731475 Chemical intermediate for insecticides |
03/24/1998 | US5731463 Selective alkylation of an alcohol substituted phenol compound |
03/24/1998 | CA2215007A1 Process for synthesizing benzoic acids |
03/24/1998 | CA1339764C Basic metal salts having improved color and stability and vinyl halide polymers containing same |
03/19/1998 | WO1998011045A1 Production of 6-bromo-2-methoxynaphthalene and derivatives |
03/19/1998 | WO1998011041A1 Production of 6-bromo-2-naphthol and derivatives |
03/19/1998 | WO1998011040A1 Production of 6-bromo-2-naphthol and derivatives |
03/19/1998 | DE19637895A1 Verfahren zur Herstellung von n-Butylalkylethern A process for the preparation of n-Butylalkylethern |
03/19/1998 | DE19637892A1 Verfahren zur Herstellung von Alkoxybutenen A process for preparing alkoxybutenes |
03/19/1998 | CA2264914A1 Production of 6-bromo-2-naphthol and derivatives |
03/19/1998 | CA2264884A1 Production of 6-bromo-2-methoxynaphthalene and derivatives |
03/19/1998 | CA2264699A1 Production of 6-bromo-2-naphthol and derivatives |
03/17/1998 | US5728899 Reduction of ketones to form alcohols |
03/17/1998 | US5728871 Process for the preparation of acetic acid |
03/12/1998 | WO1998009935A1 Intermediates for the synthesis of vitamin d and steroid derivatives and processes for preparation thereof |
03/10/1998 | US5726321 Vinylation, ethynylation, carbonylation |
03/05/1998 | WO1998008797A1 Naphthyl compounds, intermediates, compositions, and methods of use |
03/05/1998 | WO1998008785A1 Bromination of aromatic compounds with ozone |
03/04/1998 | EP0826715A1 Method for producing an alkylene oxide adduct of a compound having one more active hydrogen |
03/04/1998 | EP0826679A2 Naphthyl compounds, intermediates, compositions, and method of use |
03/04/1998 | EP0825972A1 Novel ether compound and process for producing the same |
03/04/1998 | EP0788470A4 Polyether lubricants |
03/03/1998 | US5723698 Group viii metal catalyst and hydrotalcite support |
03/03/1998 | US5723696 Catalytic polymerization of glycerol using rubidium fluoride, cesium fluoride or potassium fluoride on alumina and zirconium oxide |
03/03/1998 | US5723687 Process for the joint production of ethers and hydrocarbons with a high octane number |
03/03/1998 | US5723686 Recycle of alcohol in a combined hydroisomerization and etherification process |
03/03/1998 | US5723685 Reaction of diol with acetylene in the presence of base to form vinyl ether |
03/03/1998 | US5723684 Compositions for bis-(fluoromethyl)ether |
03/03/1998 | US5723683 Separation of monoethers from diethers |
03/03/1998 | US5723621 Reaction of silylaromatic with aromatic compound to form biaryl compound |
03/03/1998 | US5723609 Bis (hydroxymethyl) cyclobutyl purines |
03/03/1998 | US5723460 Potent and selective phosphodiesterase type iv inhibitors; useful in the prophylaxis and treatment of disease such as asthma where unwanted inflammatory response or muscular spasm is present |
02/26/1998 | WO1998007674A1 Difluorophenyl derivative compound, liquid crystal composition and liquid crystal display device |
02/25/1998 | EP0825168A2 Preparation of gamma-halotiglinaldehydes |
02/25/1998 | EP0664778B1 Method for controlling catalytic distillation etherifications |
02/24/1998 | US5721305 Polyglycerol production |
02/19/1998 | WO1998006687A1 Process for the production of mtbe |
02/19/1998 | DE19632440A1 Easily prepared and separated catalyst giving pure alkoxylation product with narrow molecular weight distribution |
02/18/1998 | CN1173860A Process for preparing alkyl tertiary-alkyl ether |
02/18/1998 | CN1037432C Catalyst for alkoxylation reaction |
02/18/1998 | CN1037431C Prodn. of hydrofluorocarbons |
02/11/1998 | CN1172694A Catalyst for preparing dimethyl ether from gas containing carbon monoxide and hydrogen |
02/11/1998 | CN1037341C Synthesis of methyl cedar ether |
02/10/1998 | US5716994 Plant extracts |
02/10/1998 | US5716896 Improved catalyst life, productivity |
02/04/1998 | CN1172468A Preparation of fuel grade dimethyl ether |
02/03/1998 | US5714662 Reforming, oxygenate production, and oxygenate conversion |
02/03/1998 | US5714640 Vapor pocket reactor |
01/29/1998 | WO1998003451A1 Improved lithium and amine dissolving metal reduction |
01/29/1998 | DE19629906A1 Flexible production of butene oligomers and alkyl tertiary butyl ether(s) from Fischer-Tropsch olefin(s) |
01/29/1998 | CA2261059A1 Improved lithium and amine dissolving metal reduction |
01/28/1998 | EP0820975A1 Process for the preparation of alkyl tert-butyl ethers and di-n-butene from field butanes |
01/28/1998 | EP0820974A1 Process for the preparation of alkyl tert-butyl ethers and di-n-butene from field butanes |
01/28/1998 | EP0820794A1 Reaction and distillation apparatus and process for the production of ethers |
01/28/1998 | CN1171391A Process for preparation of acetic acid |
01/28/1998 | CN1037173C Synthesis of fluoromethyl ether |
01/27/1998 | US5712226 Optically active D-pyridyloxy phenoxy propionate herbicides |