Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
03/1983
03/01/1983CA1142013A1 Color photographic light-sensitive material including a 2,5-di(tertiary alkyl)-substituted p-dimethoxybenzene derivative and a 3-anilino-5-pyrazolone type magenta coupler
02/1983
02/23/1983EP0072579A1 Preparation of fluorinated acid fluorides
02/23/1983EP0072556A1 Acaricide compounds
02/22/1983US4374999 Internal hydroformylation of acrolein acetals
02/22/1983CA1141778A1 Two-phase process for etherification of olefins
02/16/1983EP0071861A1 Dispersing agents, process for their preparation and their use
02/15/1983US4374286 Esterification by an inorganic acid; ester interchange with an organic acid; hydrolysis by water; stripping
02/15/1983US4374282 Ethers of polyols, their preparation and use
02/15/1983US4374281 Process for the manufacture of hydroquinone-monophenyl ethers
02/15/1983US4374257 Novel ethers containing a lactone group and a chiral atom
02/15/1983CA1141395A1 Process for preparing methyl tertiary butyl ether from methanol and isobutene
02/15/1983CA1141391A1 Chemical intermediates in the preparation of oxepane compounds
02/09/1983EP0071570A1 Process for the production of a photographic black dye image
02/09/1983EP0071238A1 Process for the preparation of methyl tert-butyl ether
02/09/1983EP0071182A2 Use of 1-ethoxy-4-ethyl benzene as a perfuming and flavouring agent
02/09/1983EP0071032A1 Process for the preparation of ethyl tert-butyl ether
02/09/1983EP0071019A1 2,3-Dialkoxypropyl glyceryl ether and its preparation process as well as cosmetic composition containing same
02/08/1983US4373070 Cross-linked polymers having pendant oxyalkyl tertiary amine groups
02/08/1983CA1140944A1 Acetylacetoxyalkyl-allyl ethers, their manufacture and use
02/08/1983CA1140941A1 By-product recycling process
02/08/1983CA1140856A1 Lipogenesis inhibiting composition and process for its preparation
02/01/1983US4371719 Curable mixtures based on maleimides and propenyl-substituted phenols, and the use thereof
02/01/1983US4371718 Using butenes to fractionate methanol from methyl-tertiary-butyl ether
02/01/1983US4371716 β-(Sec-alkoxy) ethanol process
02/01/1983US4371714 Preparation of 4-alkylanisoles and phenols
02/01/1983CA1140593A1 Process for the production of oxygenated products from olefinically unsaturated compounds by hydroformylation with suppression of olefin hydrogenation
02/01/1983CA1140574A1 Insecticidal cyclopropanecarboxylates from substituted [1,1'-biphenyl]-3-ylmethyl compounds
01/1983
01/26/1983EP0070444A1 Method for the preparation of 1,1'-diacetals
01/26/1983EP0070304A1 Partial oxidation system
01/25/1983US4370277 Phenoxy-cinnamyl alcohols
01/18/1983CA1139790A1 Process for the preparation and isolation of methyl tertbutyl ether
01/12/1983EP0069692A1 Carbacyclines, their preparation and therapeutical application
01/12/1983EP0069514A2 Alcohol carbonylation catalysts
01/11/1983US4368342 Benzene alkylation process
01/11/1983US4368337 Process for converting glycol dialkyl ether
01/11/1983US4368332 Prostaglandins
01/05/1983EP0069070A1 Colour photographic materials containing stabilizers
01/05/1983EP0069068A1 Hydroquinones and their preparation
01/05/1983EP0068514A1 A process for fractionating a methanol-containing methyl-tertiary-butyl ether reactor effluent
01/05/1983EP0068299A1 Process for the preparation of (poly)-alkylene glycolmonoalkyl ethers that are stable at storage
01/05/1983EP0068250A1 Dioxybenzene ether derivatives, pharmaceutical compositions containing them, process for the preparation thereof and their use
01/05/1983EP0068218A1 Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols
01/05/1983EP0068194A1 Process for the separation of pure tert. olefines from hydrocarbon mixtures
01/04/1983US4367361 Silica, aluminum hydride catalyst
01/04/1983US4367340 4-Oxy-cyclopent-2-en-1-one derivative, a prostaglandin intermediate, and the process for its preparation
12/1982
12/28/1982US4366330 Intermediates useful in the production of liquid crystal compounds
12/28/1982US4366329 Process for the separation of meta and para isomers of the sodium salt of bromophenol
12/28/1982US4366327 Sulfonic acid ion exchange resin
12/28/1982US4366260 Alloy of aluminum, zinc, copper
12/28/1982CA1138476A1 Curable mixtures based on maleimides and propenyl-substituted phenols, and the use thereof
12/28/1982CA1138435A1 Interface active compounds on the basis of natural rosin acids
12/27/1982EP0058173A4 Process for the synthesis of aryloxy derivatives.
12/22/1982EP0067353A1 Process for the preparation of cyclic acetals
12/22/1982EP0067342A1 Process for the preparation of 2-chloro-1,3-dimethoxybenzene
12/21/1982US4365097 Catalytic, from perhaloethane and alkanol
12/21/1982CA1137996A1 Polynuclear hindered phenols
12/15/1982EP0066856A1 Process for the preparation of polyfunctional organic compounds with at least one tert. butyl ether group or one tert. butyl ester group
12/15/1982EP0066771A1 1-Iodo-1-propyn-3-ols, process for their preparation and their use as plant protecting agents
12/15/1982EP0066761A1 Substituted 1-iodo-1-butyn-4-ols, process for their preparation and their uses as plant protecting agents
12/14/1982CA1137518A1 Oxidative process for preparing substituted biphenols
12/14/1982CA1137486A1 Process for the preparation of 2,5-bis(2,2,2- trifluoroethoxy)-n-(2-piperidylmethyl) benzamidee
12/14/1982CA1137439A1 Recovery of ethers
12/08/1982EP0066107A1 2-Hydroxy-3-methyl-branched-alkoxypropyl glyceryl ether and cosmetic composition containing same
12/07/1982CA1137117A1 Bis-(phenolic)diacetals
11/1982
11/30/1982US4361494 Liquid crystals
11/30/1982CA1136470A1 Colour photographic material containing photosensitive silver halide and a p-phenylene diether compound as anti-fading agent
11/25/1982WO1982004041A1 Process for co-production of tert.alkyl-methylether and formic acid
11/24/1982EP0065319A1 Process for the preparation of an unsaturated macrocyclic ketone
11/24/1982EP0065125A2 1,4-Bis-(4-chloro-2-methoxystyryl) benzene as well as its use as an optical brightener for macro-molecular organic materials
11/23/1982US4360700 Intermediates for making 1-(3-benzyloxyphenyl)-1,1-dimethylheptane
11/23/1982US4360699 Heating phenol and m-cresol with aluminum or aliminum phenoxide
11/23/1982US4360698 From aliphatic alcohols and oxirane compound
11/17/1982EP0064605A1 Process for the preparation of derivatives of resorcin, and the use of certain derivatives of resorcin as perfumes
11/16/1982US4359588 Odoriferous aliphatic ethers of hydroxymethylcyclododecane
11/16/1982CA1135713A1 Quinone derivatives
11/10/1982EP0064394A1 Manufacture of alpha-arylalkanoic acids and precursors
11/10/1982EP0064193A1 4,4'-Bis-(cyclohexyl)-biphenyl derivatives that contain fluorine, dielectrics containing them, and electro-optical indicator element
11/09/1982US4358412 By decarboxylation
11/09/1982CA1135268A1 Synthesis of 2-¬1-(2,5-dimethylphenyl) ethylsulfonyl|pyridine-1-oxide herbicide and intermediates therefor
11/03/1982EP0063815A1 Process for the production of alcohols and ethers
11/03/1982EP0063814A1 Process for the preparation of mixtures containing sec.-butyl-tert.-butyl ether and tert.-butyl alcohol
11/03/1982EP0063813A1 Process for the production of mixtures containing isopropyl-tert.-butyl ether and tert.-butyl alcohol
11/03/1982EP0063608A1 Cyclohexadiene derivatives and process for their preparation
11/02/1982US4357477 From carbon monoxide, hydrogen with (a) formaldehyde and an alcohol, or !b) an acetal
11/02/1982US4357282 Preparation of fluorocarbonyl compounds
11/02/1982CA1134866A1 Process for preparing a substituted diphenoxybenzene
11/02/1982CA1134841A1 Method of preparing trifluoromethylphenols
10/1982
10/27/1982EP0063374A1 Substituted biphenyl compounds
10/27/1982EP0063148A1 Process for synthesizing hydrogenated and/or fluorinated compounds of the polyoxyethylene-alkyl-ether type, compounds of this type and application thereof as surface active non-ionic agents
10/26/1982US4356327 Process for preparing propylene glycol monoalkyl ethers and alkoxyacetones
10/26/1982US4356320 Preparation of carboxylic acids
10/26/1982CA1134542A1 Powder coating compositions containing an epoxide resin and an acid hardener
10/19/1982US4355189 Process for the preparation of 4-phenoxyphenols
10/19/1982US4355186 Process for the preparation of 4-phenoxy-phenols
10/19/1982US4354956 Thickening aqueous systems with alpha-olefin oxide-modified liquid polyether thickeners
10/19/1982CA1134095A1 Air-drying process
10/19/1982CA1133951A1 Isolation of isobutene from c4-hydrocarbon mixtures containing isobutene
10/19/1982CA1133948A1 Process for the preparation of halogenated aliphatic ethers
10/19/1982CA1133932A1 Process for heterogeneous nucleophilic substitution reactions catalysed by water
10/13/1982EP0062120A1 Alkyl perfluoro(2-methyl-5-oxo-3-oxahexanoates) and derivatives thereof