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