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