Patents
Patents for C07C 43 - Ethers; Compounds having groups, groups or groups (24,599)
03/1993
03/23/1993CA1314896C Process for preparing iodinated substituted aromatic compounds
03/23/1993CA1314889C Glycerol derivatives, their preparation and their therapeutic use
03/18/1993WO1993005008A1 Method of producing epoxy-ring opening products
03/18/1993CA2116536A1 A process for the production of epoxide ring opening products
03/17/1993EP0531540A1 Method and device for filtering plasma
03/17/1993EP0380578B1 A process for the preparation of 1,4-disubstituted 2-butenes
03/17/1993EP0329752B1 Fluorinated oligophenyls and their use in liquid crystal materials
03/17/1993CN1069976A Cyclohexan and tetrahydropyran derivatives
03/17/1993CN1069962A Process for preparation of insecticidal cyclopropyl-substituted di(aryl) compounds
03/17/1993CN1020091C Insecticidal cyclopropyl-substituted di( aryl) compound
03/17/1993CA2051498A1 Process for treatment of aqueous solutions of polyhydric alcohols
03/16/1993US5194656 Reacting carbon monoxide, oxygen and excess methanol using copper catalyst, dehydrating, reacting with isobutene
03/16/1993US5194619 Process for the preparation of substituted indenes
03/16/1993US5194423 Alpha-(alkylcyclohexyloxy)-beta-alkanols and perfume compositions containing the same
03/16/1993US5194178 Liquid Crystals
03/16/1993CA1314553C Bicyclic compounds, processes for preparation thereof and pharmaceutical composition comprising the same
03/10/1993EP0530454A1 Process for the preparation of alkylphenyl alkyl ethers of alkylphenyl alkyl thioethers
03/10/1993EP0530208A1 Process for producing alpha-fluorostyrols
03/10/1993CN1069741A Polyoxypropylene/polyoxyethylene copolymers with improved biological activity
03/04/1993DE4128649A1 Verfahren zur herstellung von epoxidringoeffnungsprodukten A process for preparing epoxidringoeffnungsprodukten
03/03/1993EP0529444A2 2-Arylpropenic acids and their utilisation in the preparation of 5-ketoprofen
03/03/1993EP0519936A4 Azeotropic composition of 1-chloro-1,2,2,2-tetrafluoroethane and dimethyl ether
03/02/1993US5191127 Etherification and acid catalytic chlorination of glyoxal for 1-chloro-1,2,2-trialkoxyethane compounds
03/02/1993US5190936 Process for improving the therapeutic efficacy of fat-soluble corticosteroids and composition for carrying out this process
03/02/1993US5190692 Four ring esters and ethers
03/02/1993CA1314057C Halogen-containing ethers
03/02/1993CA1314056C Narrow range alkanol alkoxylates
03/01/1993CA2077000A1 Intermediates and their use in the preparation of s-ketoprofen
02/1993
02/24/1993EP0528763A2 Process for the preparation of di-secondary alcohols and of glycidyl ethers thereof
02/24/1993EP0528699A2 Saishin N derivatives, process for their preparation and anti-ulcer agents containing them
02/24/1993EP0528626A1 Synthesis of alkyl tert-alkyl ether using zeolite catalysts
02/24/1993EP0528096A1 Catalytic process for the selective alkylation of polycyclic aromatic compounds
02/24/1993CN1069260A Non-catalytic oxidation of propylene to propylene oxide
02/24/1993CN1069258A Biscfluoromethy ether, its producing process and use for production of difluoromethane
02/24/1993CN1069168A Method of controlling insects and acarids
02/23/1993US5189227 1,2,4-trihalobutyl ethers
02/23/1993US5189202 Process for the preparation of 3,3-dimethyl-4-pentenoic acid
02/23/1993US5188748 Azeotropic mixtures of dimethyl ether and of 1,1,1,2-tetrafluoroethane and their use
02/22/1993CA2076503A1 Catalytic process for the selective alkylation of polycyclic aromatic compounds
02/22/1993CA2076362A1 Saishin n derivatives, process for preparing same and untiulcer agents containing same
02/18/1993WO1993003023A1 Non-catalytic oxidation of propylene to propylene oxide
02/18/1993WO1993003001A1 Trimethylhexanal derivatives, their preparation and their use
02/18/1993WO1993002711A1 Use of persistent free-radicals in magnetic resonance imaging
02/18/1993CA2115260A1 Use of persistent free-radicals in magnetic resonance imaging
02/17/1993EP0527131A1 Chelants
02/17/1993CA2069396A1 One step synthesis of methyl t-butyl ether from t-butanol using hydrogen fluoride-modified zeolite catalysts
02/16/1993CA1313682C Preparation of cyclobutarenes via the steam pyrolysis of aromatic derivatives
02/16/1993CA1313681C Production of ether/ether-alcohol compositions
02/11/1993DE3348386C2 Anisotropic cpds. for liq. crystal mixts.
02/11/1993DE3051165C2 Nonionic surfactant mixt. for cosmetic and pharmaceutical compsns. - more easily dispersible with better emulsifying property
02/10/1993EP0334911B1 Substituted phenyltrifluormethylethers
02/09/1993US5185480 Decomposition with titania-supported transition metal catalyst
02/09/1993US5185474 Synthesis of fluorinated dimethyl ethers
02/09/1993US5185473 Process for the preparation of perfluorinated ethers
02/09/1993US5185472 Mixtures of bicyclic ethers, fragrance compositions containing same and novel intermediate
02/09/1993US5185377 Applying locally or by inhalation as antiinflammatory agent, antiallergen, bronchodilator, antiasthmatic, antipsoriatic
02/04/1993WO1993003113A1 Liquid-crystal compounds
02/04/1993WO1993002124A1 Method of preparing polyol compounds
02/04/1993WO1993002093A1 Modified phosphorous intermediates for providing functional groups on the 5' end of oligonucleotides
02/04/1993WO1993002034A1 Process for enzymatically preparing enantiomer-free esters and alcohols
02/04/1993WO1993002032A1 Telomerization process
02/04/1993WO1993001715A1 1,4-diaryl-1-cyclopropyl-4-substituted butanes as insecticides and acaricides
02/04/1993DE4125765A1 Trimethylhexanal-derivate, deren herstellung und verwendung Trimethylhexanal derivatives, their preparation and use
02/04/1993CA2111711A1 Process for enzymatically preparing enantiomer-free esters and alcohols
02/04/1993CA2093212A1 Liquid-crystalline compounds
02/03/1993EP0525444A1 Process for the preparation of fluorinated polyethers
02/03/1993EP0525177A1 Unimolecular micelles and method of making the same
02/03/1993EP0525140A1 Liquid-crystal compounds
02/03/1993EP0525038A1 Process for preparation of resorcinol bis(dihydroxyethyl)ether.
02/03/1993EP0307458B1 Processes for isomerizing and oxidative iodinating aromatic compounds
02/03/1993CN1068522A Solid strengthened catalyst for preparation of glycol ether
02/02/1993US5183947 One step synthesis of methyl t-butyl ether from t-butanol using fluorophosphoric acid-modified clay catalysts
02/02/1993US5183946 Reacting a diol derivative with acetylene in presence of basic catalyst; used as chemical intermediate for producing polyurethane useful as hard durable protective coating after curing
02/02/1993US5183925 Leukotriene-b4 derivatives, process for their production and their use as pharmaceutical agents
02/02/1993US5183923 Coupling alkoxylated alkylene glycol tert-butyl ether with diisocyanate, dibasic acids or esters followed by cleavage tert-butyl group with acid catalysts
02/02/1993US5183788 Modular surface catalyzed membrane containing a microporous membrane catalyst layer and transport layer
02/02/1993US5183587 Liquid crystalline compound
01/1993
01/28/1993DE4217248A1 Vinylverbindungen und fluessigkristallines medium Vinyl compounds and fluessigkristallines medium
01/28/1993DE4124665A1 Verfahren zur herstellung von polyolverbindungen Process for the preparation of polyol
01/27/1993EP0524742A2 Benzo(a)fluorene compounds
01/27/1993EP0524439A1 Novel cyclohexane and tetrahydropyran derivatives and antifungal compositions containing these derivatives
01/27/1993CN1068322A Preparation process of diethylene glycol monomethyl ether
01/27/1993CN1068320A Process for isomerizing linear olefins to isoolfins
01/26/1993US5182047 Fluorinated biphenyldiole derivatives
01/25/1993CA2074420A1 Cyclohexane and tetrahydropyran derivatives
01/23/1993CA2073488A1 Benzo (a) fluorene compounds
01/21/1993WO1992008450A3 Antiviral use of a 2,6-di-t-butylphenol compound substituted in position 4, particularly in relation to herpesviruses and papillomaviruses
01/20/1993EP0523978A1 Modified phosphorous intermediates for providing functional groups on the 5' end of oligonucleotides
01/20/1993EP0523838A2 Process for isomerizing linear olefins to isoolefins
01/20/1993EP0523475A1 Propargyl ethers and process for their preparation
01/20/1993EP0523138A1 Novel derivatives of phenyl-cycloalkanes and -cycloalkenes
01/20/1993EP0523089A1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation.
01/20/1993EP0371995B1 Process for producing phenylhydroquinones
01/20/1993EP0262227B1 Process for the preparation of myoinositol derivatives
01/20/1993CN1068103A One-step synthesis of ortho-formate
01/20/1993CN1068101A Process for dehydrochlorating 1.1-bis(r-phenyl)-2,2,2-trichloroethane
01/19/1993US5180857 Reduction of molecular weight of poly(tetramethylene ether) glycol
01/19/1993US5180521 Liquid crystal displays, cyclohexyl nitriles
01/19/1993US5180520 Ferroelectric liquid crystal compositions containing halogenated cores and chiral halogenated cores and chiral haloalkoxy tail units
01/19/1993US5180519 Alkenyl ether derivative and liquid crystal composition containing the same