Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242) |
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02/16/1982 | US4315994 Preparation of glycols and ethers |
02/16/1982 | US4315993 Preparation of ethylene glycol |
02/10/1982 | EP0045618A2 Method for promoting the activity of a catalyst in the production of esters by the reaction of an olefin with a carboxylic acid |
02/10/1982 | EP0045431A1 Process for the side-chain bromination of toluenes and mixtures of toluenes diversly highly brominated in the side chain |
02/03/1982 | EP0045118A2 Intermediates for the synthesis of bicyclo (2,2,1) heptanes and bicyclo (2,2,1) hept-2Z-enes |
02/03/1982 | EP0045100A1 Process for the transformation of an aldehyde into alkene, in particular of furfural into furfurylidenes |
02/02/1982 | US4314087 Hydrogenation of hexafluoroacetone |
02/02/1982 | US4314086 From aliphatic halide with phenolate or naphtholate in presence oftertiary amine sequestering agent |
02/02/1982 | US4314072 2-[2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropyl]ethylidene diacetates |
02/02/1982 | US4314011 Color photographic material |
01/27/1982 | EP0044650A1 Aldehyde adducts and a process for separating aldehydes involving them |
01/27/1982 | EP0044647A2 Synthesis of a pyridine-1-oxide herbicide and intermediates therefor |
01/26/1982 | US4312631 Surface-active compounds based on natural rosin acids |
01/26/1982 | CA1117122A1 Herbicidal compositions |
01/20/1982 | EP0044260A2 Process for the preparation of polyphenols optionally substituted by an aldehyde group |
01/20/1982 | EP0044002A1 Process for preparing 3-bromo-4-fluorobenzaldehyde (-acetals),3-bromo- 4-fluoro-benzoic acid nitrile and its preparation |
01/20/1982 | EP0043986A2 Process for preparing alkyl-tert.alkyl ethers |
01/20/1982 | EP0043963A1 Improved process for ethoxylation of broad-range primary alcohols |
01/19/1982 | US4311862 Etherification of conjugated diene with alcohol |
01/19/1982 | US4311861 Norbornyl ethers |
01/19/1982 | US4311617 Perfumery compositions |
01/19/1982 | CA1116641A1 Deuterated isoflurane |
01/19/1982 | CA1116619A1 Fluorine-substituted phenoxybenzyloxycarbonyl derivatives and their use as insecticides and acaricides |
01/13/1982 | EP0043478A1 Process for recovering the products of the etherification reaction of iso-olefines and methanol |
01/13/1982 | EP0043435A1 Intermediate products occurring in anthracycline synthesis |
01/13/1982 | EP0043420A1 Method for the preparation of ethoxylated derivatives blocked by a methyl group |
01/12/1982 | US4310710 Process for manufacturing and recovering methyl tert.butyl ether |
01/12/1982 | US4310709 Manufacture of but-2-en-1-ol compounds by isomerizing the corresponding but-3-en-1-ol compounds |
01/12/1982 | US4310708 Phosphonium catalysts for hydroxyalkylation of phenols or thiophenols |
01/12/1982 | US4310707 Sodium stannate catalyst for hydroxyalkylation of phenols or thiophenols |
01/12/1982 | US4310706 Imidazole catalysts for hydroxyalkylation of phenols or thiophenols |
01/12/1982 | US4310702 Selective monochlorination of ketones and aromatic alcohols |
01/12/1982 | US4310680 Metal or metal compound catalyst |
01/12/1982 | US4310669 Intermediates to 1,9-dihydroxyoctahydrophenanthrenes |
01/12/1982 | US4310668 Intermediates to 1,9-dihydroxyoctahydrophenanthrenes |
01/12/1982 | US4310540 Pyrethroid-like compounds |
01/12/1982 | US4310529 Analgesics |
01/07/1982 | WO1982000030A1 Ambrinol and its homologues |
01/06/1982 | EP0043150A1 Pharmaceutical 2,3 -bis-hydroxybenzyl butane derivatives |
01/05/1982 | CA1115737A1 Process for obtaining isobutene from c.sub.4-hydrocarbon mixtures containing isobutene |
01/05/1982 | CA1115708A1 Substituted oxy-cyclohexylacetic acid derivatives |
12/30/1981 | EP0042412A1 Method of synthesizing fluoromethylhexafluoroisopropyl ether. |
12/30/1981 | EP0042408A1 Methods of synthesizing hexafluoroisopropanol from impure mixtures and synthesis of a fluoromethyl ether therefrom. |
12/30/1981 | EP0007347B1 Alkylenglycol compounds for lowering the lipid content and processes for the preparation thereof |
12/29/1981 | US4308403 From hydrogen, carbon monoxide, aldehyde, alcohol; cobalt coordination catalyst |
12/29/1981 | US4308402 Process for methyl-capped alkoxylates |
12/29/1981 | US4308159 Use of norbornyl ethers in augmenting or enhancing the aroma of fabric softener articles |
12/29/1981 | CA1115271A1 Mercapto substituted-2,3,4,5-tetrahydro-1h-3- benzazepines |
12/22/1981 | US4307254 Catalytic distillation process |
12/22/1981 | US4307253 Process for the preparation of alkyl aryl ethers |
12/22/1981 | US4307252 2-Propyl-pent-4-en-1-al |
12/22/1981 | US4307111 1-Hydrocarbyloxyphenyl-1,2-diphenylalkene derivatives |
12/22/1981 | US4306943 Purification of polyether-polyol |
12/22/1981 | CA1114830A1 Polyene compounds |
12/16/1981 | EP0041739A2 Preparation of fluorinated acid fluorides; preparation of acids, amides or esters derived therefrom, copolymerization of fluorinated vinyl ethers |
12/16/1981 | EP0041738A1 Preparation of vinyl ethers |
12/16/1981 | EP0041737A1 Process to produce novel fluorocarbon vinyl ethers and resulting polymers |
12/16/1981 | EP0041736A1 Fluorocarbon ethers having substituted halogen site(s) and process to prepare |
12/15/1981 | US4306106 Conversion of polar compounds using a ZSM-5 zeolite catalyst |
12/15/1981 | US4306097 3-[2-Hydroxy-4-(substituted)phenyl]-cycloalkanol analgesic agents |
12/15/1981 | US4306096 Perfumes, insecticides |
12/15/1981 | US4306093 Strontium catalyzed alkoxylations |
12/09/1981 | EP0041441A1 Process for the meta-hydroxylation of alkyl phenols and their ethers in super acids |
12/09/1981 | EP0041440A1 Isomerisation of ortho- and para-homophenols or their ethers to the corresponding metabromophenols or ethers |
12/09/1981 | EP0041131A2 Preparation of fluoro-substituted benzodioxoles and benzodioxanes |
12/08/1981 | US4304938 M-phenoxybenzaldehyde oxime, chlorinating benzaldehyde, 2-/m-phenoxyphenyl/-1,3-dioxolane |
12/08/1981 | US4304785 Dilignols and dilignol-type compounds |
12/08/1981 | CA1113968A1 Process for the preparation of an aromatic hydrocarbon mixture |
12/02/1981 | EP0041043A1 Process for the preparation of derivatives of alkenyl benzene or alkenyl naphthalene |
12/02/1981 | EP0041021A2 Cyclopropane carboxylic acid derivatives, their preparation, their use against parasites in plants and animals, their compositions and their intermediates |
12/01/1981 | US4303639 1,2-Alkanediol derivatives in cosmetic compositions as an excipient therefor |
12/01/1981 | US4303544 Dishwashing |
12/01/1981 | CA1113477A1 Substituted phenoxybenzyloxycarbonyl derivatives and their use as insecticides and acaricides |
12/01/1981 | CA1113463A1 3-(2-hydroxy-4-(substituted)phenyl) azacycloalkanes and derivatives thereof as analgesic agents and intermediates therefor |
11/25/1981 | EP0040400A1 Process for preparing the mono-methallyl-ether of pyrocatechin |
11/24/1981 | US4302614 2,2-Bis[4-(2,3-dibromopropoxy)-3,5-dibromophenyl]-propane process |
11/24/1981 | US4302613 Strontium- or barium-based catalyst |
11/24/1981 | US4302607 Cyclopentadecanones |
11/24/1981 | US4302398 Naphthacene derivatives |
11/24/1981 | US4302356 Using an ion exchange resin distillation column |
11/24/1981 | US4302349 Alcohol- and oxide-modified ethylene glycol polymers; detergents; automatic dishwashers |
11/24/1981 | US4302306 Bromination of side chain of m-phenoxytoluene |
11/24/1981 | US4302298 Recycling part of hydrocarbon cut |
11/24/1981 | CA1113125A1 Ethynylbenzenes |
11/18/1981 | EP0039890A1 Method for the preparation of hydroquinone mono-phenyl ethers |
11/18/1981 | EP0039859A2 Process for preparing polyglycol ether coformals and polyglycol ether coformals |
11/18/1981 | EP0039830A1 Process for the preparation of optically active compounds and their use in the preparation of vitamin E |
11/17/1981 | US4301308 Flowing gaseous methanol and phenol through a fluidized bed of gamma-alumina |
11/17/1981 | US4301307 Process for the hydroxylation of aromatic compounds |
11/17/1981 | US4301088 Method of preparing benzyl alcohols by decarbonylation of formic acid esters |
11/17/1981 | US4301083 Preparation of etherified polyoxyalkylene derivatives |
11/17/1981 | CA1112658A1 CYCLISATION SUBSTRATES CONVERTIBLE TO 7-.alpha.- SUBSTITUTED 19-NORSTEROID DERIVATIVES |
11/11/1981 | EP0039484A1 Process for the production of monoethers of hydroquinone and quinol ketales as intermediates thereof |
11/10/1981 | US4299999 Process for the preparation and isolation of methyl-tert-butyl ether |
11/10/1981 | US4299998 Preparation of ethers |
11/10/1981 | US4299997 By-product inhibition by adding ethylene glycol mono-tert-butyl ether and ethylene glycol di-tert-butyl ether |
11/10/1981 | US4299996 Using an ion exchange resin as catalyst |
11/10/1981 | US4299995 Fluorinated polyenes |
11/10/1981 | CA1112252A1 Intermediate in the preparation of cyclopropylcarboxylate esters and process for its manufacture |
11/04/1981 | EP0039232A1 Substituted tricyclodecane derivatives, processes for preparing such derivatives, processes for using such derivatives and compositions using such derivatives |