Patents
Patents for C07C 43 - Ethers; Compounds having groups, groups or groups (24,599)
01/1991
01/31/1991DE3923674A1 New 1,2-di:aryl-3-chloro-propene cpds.
01/30/1991EP0410929A2 Linear polymers
01/30/1991EP0410756A1 Cyclohexenylethane compounds
01/30/1991EP0410742A1 Phenylethenyl compounds having retinoid-like activity
01/30/1991EP0410731A1 Perfumery uses of 3-(2-bornyloxy)-2-methyl-1-propanol
01/30/1991EP0410689A1 Process for producing alkyl tertiary-alkyl ether and C5+ gasoline boiling range hydrocarbons
01/30/1991EP0410547A2 Propargyl aromatic ether polymers
01/30/1991EP0410469A2 Cyano-substituted compound containing ether bond
01/30/1991EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins
01/30/1991EP0410379A2 Pharmaceutically active 3-aryl and 3-heteroaryl-2-fluoro-1-olefins
01/30/1991EP0410359A1 Substituted aminoalkoxy-benzene-derivatives
01/30/1991EP0410241A1 Aryl alkenoic acid derivatives as leukotriene antagonists
01/30/1991EP0410233A2 (4-Arylbutyl) cyclohexane derivatives
01/30/1991EP0409855A1 Extraction of crude methanol and conversion of raffinate
01/30/1991EP0216785B1 Indene analogs of mevalonolactone and derivatives thereof
01/30/1991CA2022103A1 Process for the preparation of ketals
01/29/1991US4988828 Phenoxypropyl derivatives
01/29/1991US4988826 Process for intermediates for insecticidal compounds
01/29/1991US4988819 1,2,4-triazolemethyl ketones as chemical intermediates for plant growth regulators or fungicides
01/29/1991CA2022308A1 Process and apparatus for the production of ether-rich fuel
01/29/1991CA2022188A1 Process for producing alkyl tertiary-alkyl ethers and c5+gasoline boiling range hydrocarbon
01/29/1991CA2022048A1 Propargyl aromatic ether polymers
01/28/1991CA2021995A1 Aryl alkenoic acid derivatives as leukotriene antagonists
01/28/1991CA2020888A1 Substituted aminoalkoxybenzene derivatives
01/27/1991CA2020253A1 Phenylethenyl compounds having retinoid-like activity
01/26/1991CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins
01/25/1991CA2021689A1 Linear polymers
01/23/1991EP0409634A2 Liquid crystal compounds and optically active compounds
01/23/1991EP0409414A1 Diaryl ether cycloalkanes
01/23/1991EP0409172A2 Process for dimerizing aromatic halogen compounds
01/23/1991EP0409086A1 One-step liquid phase process for dimethyl ether synthesis
01/23/1991EP0409049A2 Method for the stereoselective production of Z-1,2-diaryl-alkyl-chlorides and their conversion to azolylmethyloxiranes as well as intermediates
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
01/23/1991CN1011290B Use of fluorinated telomer possesing hydrophilic groups
01/22/1991US4987272 Dipropargyl ether of alpha, alpha'-bis (4-hydroxypenyl)-paradiisopropylbenzene
01/22/1991US4987268 Reaction of alkenyl halide with alcoholate
01/22/1991US4987267 Monomers for allyl copolymers
01/22/1991US4987147 Low toxicity
01/22/1991US4986931 Cyclohexane derivatives
01/22/1991CA1279330C Process for the preparation of an alkanol alkoxylate product
01/19/1991CA2020929A1 One-step liquid phase process for dimethyl ether synthesis
01/18/1991CA2019344A1 Diaryl ether cycloalkanes
01/17/1991DE3922416A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922308A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922307A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
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
01/16/1991EP0407569A1 Diphenylethanes
01/15/1991US4985590 Optically active benzene derivatives and process for preparation thereof
01/15/1991US4985583 Liquid Crystals
01/15/1991US4985550 Polyhydroxylated and highly fluorinated compounds, their preparation and their use as surfactants
01/15/1991US4985442 2-substituted-1-naphthols as 5-lipoxygenase inhibitors
01/15/1991US4985435 2-substituted-1-naphthols as 5-lipoxygenase inhibitors
01/15/1991US4985403 Use of adamantane derivatives in augmenting or enhancing the aroma of consumable materials
01/12/1991CA2020792A1 Hydroxylation process of phenols and phenol ethers
01/09/1991EP0406768A2 Process for eliminating a mixture of solvents from a gas stream
01/09/1991EP0406678A1 Swelling agent for the pre-treatment of polymers to be plated by electrolysis
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
01/07/1991CA2020624A1 Swelling agent for pretreatment of a synthetic resin prior to electroless metallization and improved method of making a circuit board using same
01/03/1991DE3920571A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/02/1991EP0405994A2 Synthetic process for FK-506 type macrolide intermediates
01/02/1991EP0405781A1 Method and apparatus for the preparation of methyl tertiary butyl ether
01/02/1991EP0405713A1 Polymerization of liquid crystalline monomers
01/02/1991EP0405389A1 Process for producing an aromatic compound
01/02/1991CA1278578C Organic solvent soluble polyvalent metal alkoxy alkoxides
01/01/1991US4982011 Hydrogenation, distillation, catalytic cracking
01/01/1991US4982010 Method of producing 4-biphenyl p-tolyl ether
01/01/1991US4982009 Hydroxy containing fluorovinyl compounds and polymers thereof
01/01/1991US4982008 Bromination, by-product inhibition
01/01/1991US4981973 Bronsted acid, ruthenium catalyst
01/01/1991US4981868 Enzyme inhibitors, hypotensives
12/1990
12/31/1990CA2020072A1 Synthetic process for fk-506 type macrolide intermediates
12/27/1990WO1990013611A3 Optically active compounds and liquid crystal phase
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
12/27/1990EP0403739A2 Photosensitive compounds and their preparation and use
12/27/1990EP0403718A2 Products of styrene oxide
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
12/25/1990US4980345 Pyrazole compounds and use thereof
12/20/1990CA2014966A1 Polymerization of liquid crystalline monomers
12/20/1990CA2006424A1 Styrene oxide products
12/19/1990EP0403026A1 12-Substituted-12H-dibenzo(D,G)(1,3)dioxocin-6-carboxylic acids, herbicidal compositions, and a method of controlling undesirable vegetation
12/19/1990EP0402646A1 Retroviral protease inhibiting compounds
12/18/1990US4978807 Method for the preparation of methyl tertiary butyl ether
12/18/1990US4978806 Scale-up and synthesis of 1-methoxycyglohepta-1,3,5-triene
12/18/1990US4978653 Derivative of 2-cyclohexylpropanal and perfumery composition comprising the same
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
12/13/1990WO1990015114A1 Ring compounds
12/13/1990WO1990015113A1 Fluoro-chloro-benzene derivatives