Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
01/1991
01/23/1991EP0408856A2 Process for the preparation of nonionic surfactants low in alkylene oxides and 1,4-dioxane by means of alkali metal alcoholate catalyst
01/22/1991US4987268 Reaction of alkenyl halide with alcoholate
01/22/1991US4987147 Low toxicity
01/22/1991CA1279330C Process for the preparation of an alkanol alkoxylate product
01/19/1991CA2020929A1 One-step liquid phase process for dimethyl ether synthesis
01/16/1991EP0408418A1 Method of hydroxylating phenols and phenol ethers
01/16/1991EP0407841A2 Method for the production of ethers from C4-C7-tert-alkenes and 2- to 6-valent alcohols
01/12/1991CA2020792A1 Hydroxylation process of phenols and phenol ethers
01/09/1991EP0407038A1 Method for the preparation of dialkyl ethers
01/08/1991US4983779 Coupling carbonyl compound with ester in organic solvent in presence of metallic reducing agent, titanium salt, amine base
01/08/1991US4983778 And sulfuric acid, alkanesulfonic acid or hydroxyarylsulfonic acids
01/08/1991US4983630 2,2-difluorocyclopropylethane derivatives, processes for their preparation and their use as pesticides
01/08/1991US4983329 Preparation of esterified propoxylated glycerin from free fatty acids
01/02/1991EP0406050A2 Process for the preparation of phenols
01/02/1991EP0405781A1 Method and apparatus for the preparation of methyl tertiary butyl ether
01/02/1991EP0405389A1 Process for producing an aromatic compound
01/02/1991CA1278578C Organic solvent soluble polyvalent metal alkoxy alkoxides
01/01/1991US4982012 Two phase process for preparing 2-methallyloxyphenol from catechol
01/01/1991US4982011 Hydrogenation, distillation, catalytic cracking
01/01/1991US4982010 Method of producing 4-biphenyl p-tolyl ether
01/01/1991US4982008 Bromination, by-product inhibition
01/01/1991US4981973 Bronsted acid, ruthenium catalyst
01/01/1991US4981868 Enzyme inhibitors, hypotensives
12/1990
12/27/1990EP0404640A1 5,6,7,8-Tetrahydro-1-naphtalenol derivatives, process for their preparation and their use as antioxidants in cosmetic and pharmaceutical compositions
12/27/1990EP0404092A2 A novel method of preparing phenoxy ethers for use as agrochemical intermediates
12/27/1990EP0404077A1 Process for producing propargylcarbinol compounds
12/27/1990EP0404076A1 Process for preparing perhaloethers from perhaloolefins and perhaloethers obtained thereby
12/27/1990EP0403929A2 A method of preparing phenoxy ethers for use as agrochemical intermediates
12/27/1990EP0403841A1 Process for the production of arylacetaldehyde-dialkylacetals
12/27/1990EP0403639A1 Process for the conversion of olefins to alcohols and/or ethers
12/27/1990CA1278316C2 L-alkoxy-3-methylhexa-1,3,5-triene derivatives and their use for preparing polyenic aldehydes
12/27/1990CA1278309C Preparation of polyenic aldehydes
12/26/1990CN1010940B Water aided catechol etherification
12/25/1990US4980488 Fungicidal and plant growth-regulating azolymethyl-cyclopropyl derivatives
12/25/1990US4980434 Absorbent polymers, their manufacture and uses
12/25/1990US4980033 Recovery of triethylene glycol from triols by azeotropic distillation
12/19/1990EP0403026A1 12-Substituted-12H-dibenzo(D,G)(1,3)dioxocin-6-carboxylic acids, herbicidal compositions, and a method of controlling undesirable vegetation
12/18/1990US4978807 Method for the preparation of methyl tertiary butyl ether
12/18/1990CA1278139C Polyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of same
12/15/1990CA2018986A1 Herbicidal 12-substituted 12h-dibenzo(d,g)(1,3)dioxocin-6-carboxylic acids
12/14/1990CA2018524A1 Process for light olefins hydration and mtbe production
12/13/1990WO1990015043A2 Perfluorovinyl compounds
12/13/1990CA2018959A1 Tetrahydro-5,6,7,8 naphtalenol-1 derivatives, process for their preparation and use as antioxidant in cosmetic compositions and pharmaceutical products containing same
12/12/1990EP0402051A2 Processes for the preparation of saturated alcohol derivatives and their use in detergent: plasticizer: and synthetic lubricant formulations
12/12/1990EP0401626A2 Process for the preparation of chlorinated diphenyl ether
12/10/1990WO1990015044A2 Reactive compounds containing perfluorocyclobutane rings
12/10/1990CA2030800A1 Reactive compounds containing perfluorocyclobutane rings
12/05/1990EP0400068A1 Derivatives of 2,3-difluorophenol
12/04/1990US4975380 Chemiluminescent labeled organic reagents and their use in analysis of organic compounds
12/04/1990US4975097 Iso-olefin etherification, upgrading and paraffin transhydrogenation
12/01/1990WO1990015056A1 Dopamine agonists
12/01/1990CA2056995A1 Dopamine agonists
11/1990
11/29/1990WO1990014326A1 Integrated process for the production of ether-rich liquid fuels
11/28/1990EP0399284A2 Method for the production of geminal diarylalkanes, geminal diarylalkanes and alk(en)ylated aromatic compounds
11/28/1990EP0398998A1 Synthetic porous crystalline material, its synthesis and use.
11/28/1990EP0224596B1 Use of dibenzocyclooctadiene lignans extracted from schisandrae fructus for the manufacture of a medicament for the treatment of hepatic failure
11/28/1990CN1047276A Alkoxylation process catalyzed by barium phosphate
11/27/1990US4973767 Cyclopropane derivatives
11/27/1990US4973765 Preparation of dien-1-ols, 9-hydroxydodec-10-enyl 1-tert-butyl ether and use thereof as an intermediate for synthesizing 8,10-dodecadienol
11/27/1990US4973763 Process for the preparation of polyglycerols
11/27/1990US4973762 Endcapping a polyfluoropolyether with iodide
11/27/1990US4973751 Dehydroxylation in high boiling mineral oil
11/27/1990US4973738 Liquid crystal compounds having naphthalene nucleus
11/27/1990US4973736 Dye, drug and herbicide intermediates
11/27/1990US4973716 Process for preparing perfluoroethers by fluorination with elemental fluorine
11/22/1990EP0398450A2 Alkoxylation process catalyzed by barium phosphate
11/20/1990US4972040 Process for the preparation of CHF2 OCHFCF3
11/20/1990US4971995 Inhibitors of monoamine oxidase, neurological disorders, aging, memory problems, schizophrenia, psydhaesthinia, parkinson*s disease
11/20/1990CA1276652C Phenolic compound chlorination process
11/15/1990DE3930663C1 Cross-coupling metal organic cpds. and e.g. halogen cpds. - includes using transition metal-palladium catalyst and opt. metal alcoholate
11/14/1990EP0397290A1 Novel derivatives, their preparation and pharmaceutical composition containing them
11/14/1990EP0396650A1 Device for carrying out catalytic reactions.
11/13/1990CA1276184C Process for the preparation of a-,a-,a- trifluoroanisoles
11/06/1990US4968836 From a hydrocarbyloxy halogenated tetrahydrofuran
11/04/1990WO1990013531A2 Octadienyl ethers and a process for making octadienyl ethers
11/04/1990CA2033178A1 Octadienyl ethers and a process for making octadienyl ethers
11/01/1990WO1990012777A1 Process for producing high octane gasoline
10/1990
10/31/1990EP0394984A1 Process for refining alkylene oxide adducts
10/30/1990US4967017 Basic alkali metal compound catalyst, neutralization in presence of filter aid
10/30/1990US4967016 Alkoxylation process catalyzed by barium phosphate
10/30/1990US4967015 Polytetrahydrofuran vinyl ethers
10/30/1990US4966987 Chemical intermediate for fluorinated aromatic compound
10/27/1990CA2015434A1 Process for the purification of alkylene oxide adducts
10/25/1990WO1990012855A1 Conversion of alcohols to ether-rich gasoline
10/25/1990WO1990012854A1 Integrated process for enhancing high octane ether production and olefin conversion in gasoline
10/25/1990WO1990012778A1 Integrated process for production of gasoline and ether from alcohol with feedstock extraction
10/25/1990CA2031212A1 Integrated process for production of gasoline and ether from alcohol with feedstock extraction
10/25/1990CA2031184A1 Conversion of alcohols to ether-rich gasoline
10/25/1990CA2030797A1 Integrated process for enhancing high octane ether production and olefin conversion in gasoline
10/24/1990EP0394042A1 Process for producing m-phenoxybenzyl alcohol
10/24/1990EP0393667A1 Process for the production of benzyl methyl esters
10/24/1990EP0393513A1 Preparation of a difluorohalomethoxybenzene
10/23/1990US4965400 Acylation of 2,6-di-substituted phenol with acetic anhydride, esterifying, hydrogenation, and dehydrating
10/23/1990US4965376 3,9-dihydroxynonyne and its derivatives protected at the 9-OH function
10/23/1990US4965361 Preparation of 4-substituted aryl olefins
10/23/1990US4965274 Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same
10/23/1990US4964616 Useful as electrooptical materials
10/23/1990CA1275420C Process for converting methanol to alkyl ethers, gasol ine distillate and alkylate liquid hydrocarbons
10/18/1990WO1990011990A1 Process for reducing propenyl ether concentration in hydroxy-functional polyether compounds
10/18/1990WO1990005710A3 Minimizing deactivation of ether synthesis catalyst