Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
02/1992
02/25/1992US5091588 Fluorinated styrene derivatives and method for making
02/25/1992US5091578 Method of preparing phenoxy ethers for use as agrochemical intermediates
02/25/1992US5091577 Method of preparing fungicidal intermediates
02/25/1992US5091416 Insecticidal compounds
02/25/1992CA1296352C Aromatic dicyclic coumpounds, process for preparing such and use thereof in cosmetics
02/25/1992CA1296342C Anti-inflammatory agents, pharmaceutical compositions and methods for reducing inflammation
02/18/1992US5089662 Miticides
02/18/1992US5089659 Preparation of e7/z9-alkadien-1-ols and their derivatives protected at the hydroxyl group
02/18/1992US5089657 Topical antiinflammatory agents
02/17/1992CA2049172A1 Process for the preparation of 5-bromo-2-methoxyresorcinol
02/12/1992EP0470655A1 Process for preparing tertiary alkyl ethers and apparatus for reactive distillation
02/12/1992CN1058582A Process for preparing tertiary alkyl ethers and apparatus for reactive distillation
02/11/1992US5087790 Method for olefination of carbonyl compounds using titanocene derivatives
02/11/1992US5087769 Preparation of 6-substituted-2-vinylnaphthalene
02/11/1992US5087765 Process for preparing chlorotrifluoroethylene telomers and new telomers obtained
02/06/1992WO1992001766A1 Ferroelectric liquid crystal compositions containing halogenated cores and chiral haloalkoxy tail units
02/06/1992WO1992001661A1 Reactor quenching for catalytic olefin hydration in ether production
02/06/1992WO1992001658A1 Extraction of selected hydrocarbons from a hydrocarbon stream using a carbon adsorbent
02/06/1992WO1990013531A3 Octadienyl ethers and a process for making octadienyl ethers
02/05/1992EP0470000A1 Allylation reagent and method of synthesis using it
02/04/1992US5086038 Soap, cosmetics, body deodorizer, air freshner, detergent and fabric softener; white flower fragrance
02/02/1992CA2047269A1 Process for preparing tertiary alkyl ethers and apparatus for reactive distillation
01/1992
01/28/1992US5084440 Acetals and ketals of oxo-tetralins and oxo-indanes
01/28/1992US5084204 Compounds for liquid crystal display elements
01/28/1992US5084070 Gum-free components containing alkyl tert.-alkyl ethers
01/26/1992WO1992001660A1 Improved catalytic olefin hydration for ether production
01/26/1992CA2087276A1 Catalytic olefin hydration for ether production
01/23/1992WO1992000944A1 Unsaturated ethers
01/22/1992EP0466954A1 Catalytic distillation
01/21/1992US5082978 With p-dimethoxybenzene and acid catalyst
01/21/1992US5082961 Method for the preparation of an alkynyl compound
01/15/1992EP0466545A1 Zeolites based on silica and oxides of tetravalent elements, method for their synthesis and their use
01/15/1992EP0466319A1 Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts
01/15/1992EP0370054B1 Catalyst composition and method for selective dehydrogenation
01/14/1992US5081318 One step synthesis of methyl t-butyl ether from t-butanol using fluorosulfonic acid-modified zeolite catalysts
01/14/1992US5081273 Process for the preparation of insecticidally active diphenyl ether compounds
01/14/1992US5081251 Stilbene compounds use in anionic polymerization
01/14/1992US5081249 From gaseous fluorine and solution of pyridinesulfonate
01/14/1992US5080827 1,2-propanediol derivative
01/14/1992US5080794 Separation of 1-methoxy-2-propanol and water
01/09/1992WO1992000265A1 A method for avoiding formation of by-products at the production of an ethoxylated polyol
01/09/1992WO1992000260A1 Selective ethylation of naphthalene compounds
01/09/1992DE4021511A1 Ungesaettigte ether Unsaturated ethers
01/08/1992EP0464045A1 Discontinuous process for conducting a heterogeneously catalysed reaction and installation for heterogeneously catalysed manufacture of products.
01/08/1992CN1057644A Acid-catalyzed fabrication of precursors for use in making polyols and ethylene oxide capping of polyols made using double metal cyanide catalysts
01/08/1992CN1057640A Alkylating aromatic compounds
01/07/1992US5078751 High octane gasoline
01/02/1992EP0463946A1 Process for the preparation of polyalkoxylated aromatic compounds
01/02/1992EP0463862A2 Aromatic vinyl ether compounds and compositions, and method of making the same
01/02/1992EP0463162A1 PREPARATION OF 5,6,7-TRINOR-4,8-INTER-m-PHENYLENE PGI 2 DERIVATIVES
01/02/1992EP0307404B1 Process for preparing alkyl-tert-butyl ethers
01/02/1992EP0287675B1 Process for producing biphenols
01/01/1992CN1057451A Process for preparing ether
12/1991
12/31/1991US5077440 Process for the preparation of 3-phenoxybenzylalcohol
12/31/1991US5076947 1-phenyl-1-propanol derivative
12/31/1991CA1293735C Rooperol and its derivatives
12/27/1991EP0462283A1 Process for producing dipentaerythritol
12/26/1991CA2045304A1 Aromatic vinyl ether compounds and compositions, and method of making the same
12/24/1991US5075513 Fungicides
12/24/1991US5075509 Lubricants, heat exchangers, vapor phase soldering fluids, solvents, oxygen carrier
12/18/1991EP0462031A1 Method for the production of dialkoxybutenes
12/12/1991WO1991018909A1 Process for removing double metal cyanide complex catalyst residues from catalyst-residue containing polyols
12/12/1991WO1991018855A1 Process for halogenating aromatic compounds
12/11/1991EP0460311A1 A method for removing odorous impurities from dimethyl ether
12/11/1991EP0460196A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes.
12/11/1991EP0452411A4 Acid catalyzed process
12/10/1991US5072017 Process for the preparation of p-substituted o-benzylphenols
12/10/1991US5071640 Cosmetic composition containing a polyoxyethylenated non-ionic surface-active agents with two lipophilic chains
12/10/1991US5071627 Reactor system for conducting a chemical conversion
12/08/1991CA2018615A1 Method for removing odorous impurities from dimethyl ether
12/04/1991EP0459242A2 Process for the preparation of phenolethers
12/04/1991EP0458965A1 Process for the preparation of vinyl ethers.
12/03/1991US5070016 Hydrogenation of carbon dioxide formed in ethanol synthesis; g eneration of steam; steam reforming; dehydrogenation of isobut ane; etherification
12/03/1991CA1292837C Preparation of polyether compositions
12/03/1991CA1292753C Process for the hydroformylation of sulfur-containing thermally cracked petroleum residua
11/1991
11/27/1991EP0458684A1 Reagent and process for the perfluoroalkylation of nucleophilic substrates by sodium perfluoroalkanesulfinates in an oxidising medium
11/27/1991EP0458262A2 Method for reducing unsaturation of polyethers
11/27/1991EP0458048A1 Production of diisopropyl ether
11/26/1991US5068460 Process for preparation of resorcinol
11/26/1991US5068459 Process for producing m-phenoxybenzyl alcohol
11/26/1991US5068458 Chemical process for halogenating 2-methyl-6-methoxynaphthalene
11/26/1991US5068456 Oxyalkylation of reactive hydrogen compounds, such as alcohols, in the presence of a catalytic magnesium and phenolic compounds
11/26/1991US5068452 Aromatic aldehydes and their derivatives
11/26/1991US5068446 Crystallization and heat treatment
11/26/1991US5068403 Intermediates useful in the production of pesticides
11/26/1991US5068340 Antagonist of platelet activating factor for treatment of asthma, inflammation or shock
11/26/1991US5068053 Liquid crystals for optical apparatus
11/25/1991CA2041239A1 Production of diisopropyl ether
11/24/1991CA2043059A1 Method for reducing unsaturation of polyethers and low unsaturation polyethers so obtained
11/21/1991EP0457465A1 Integrated cracking, etherification and olefin upgrading process
11/21/1991EP0456658A1 Vinyloxy hydroxyalkylcycloalkane and preparation therefor
11/19/1991US5066825 Process for preparing a naphthalene derivative
11/19/1991US5066815 Asymmetric hydrogenation of ketone, ruthenium-phosphine catalyst
11/19/1991CA2041238A1 Integrated cracking, etherification and olefin upgrading process
11/13/1991EP0456157A1 Process of producing chloroacetals
11/12/1991US5064623 Tert-alkyl methyl ether octane improvers
11/12/1991CA1292002C Propanol derivatives
11/06/1991EP0455029A2 Process for the preparation of fuels and fuel components with a high-octane, low-olefin content
11/06/1991EP0455004A1 Process for the preparation of dimethyl ether
10/1991
10/31/1991WO1991016290A1 Synthesis of cyclitols from substituted arene diols