| Patents for C07C 67 - Preparation of carboxylic acid esters (66,429) |
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| 04/08/1981 | EP0026533A1 Process for the recovery of carboxylic acids from mixtures containing glycol esters derived from these acids |
| 04/08/1981 | EP0026520A1 Photographic silver halide development in the presence of thioether development activators; method, developer and photographic element |
| 04/08/1981 | EP0026507A1 Process for preparing benzoic acid |
| 04/08/1981 | EP0026437A1 3-(2,3-dichloro-3,3-difluoro-prop-1-en-1-yl)2,2 dimethyl cyclopropionic acid fluorobenzyl esters, process for their manufacture and their use in pesticides |
| 04/08/1981 | EP0026415A1 Process for producing methyl formate by the catalytic conversion of methanol |
| 04/08/1981 | EP0026393A2 Preparation of unsaturated diester precursor for sebacic acid and preparation of sebacic acid esters therefrom |
| 04/08/1981 | EP0026369A2 Carbamates, their preparation and pharmaceutical compositions containing them |
| 04/08/1981 | EP0026361A2 Sulfenylated acyl urethanes, process for their preparation and their microbicidal use |
| 04/08/1981 | EP0026349A1 Process for the preparation of 1.2-dichloroethane |
| 04/08/1981 | EP0026344A1 2,2,3-Trimethylcyclopent-3-en-ylmethyl-substituted alicyclic ketones and alcohols, production process and their use as odorants |
| 04/08/1981 | EP0026323A1 4(5)-Acetyl-9,9-dimethyltricyclo-(4,4,0,1(8,10))-undec-1-ene, its preparation and use as odorant, and odorant composition containing it |
| 04/08/1981 | EP0026318A1 Process for the preparation of pure 4.4-dihydroxydiphenyl alkanes or cycloalkanes |
| 04/08/1981 | EP0026316A1 Process for the preparation of 4-nitroso-diphenyl amine |
| 04/08/1981 | EP0026307A1 Organic sulfoxides, process for preparing the same and pharmaceutical enzyme inhibiting compositions comprising the same |
| 04/08/1981 | EP0026291A1 Process for the preparation of terephthalaldehyde or isophthalaldehyde |
| 04/08/1981 | EP0026289A1 Antihypertensive polyhalohydroxyisopropyl phenylalkanoic and phenylalkenoic acids, amides and esters, pharmaceutical compositions therefrom and intermediates thereto |
| 04/08/1981 | EP0026281A1 2,4,6-Triiodo-isophthalic acid derivatives, process for their preparation and X-ray contrast agents containing them |
| 04/08/1981 | EP0026280A1 Process for the production of acetic anhydride |
| 04/07/1981 | US4260844 Nickel complexes in diol solvents and their use as oligomerization catalyst precursors |
| 04/07/1981 | US4260843 Alkylation |
| 04/07/1981 | US4260838 Process of making nitroparaffins by nitration in the gaseous phase |
| 04/07/1981 | US4260832 Alkali metal or hydroxide or alkoxide thereof as catalyst |
| 04/07/1981 | US4260830 Process for the preparation of methyl dihydrojasmonate and lower alkyl homologues |
| 04/07/1981 | US4260829 Preparation of carbonyl compounds |
| 04/07/1981 | US4260827 Process for the purification of aqueous solutions of low molecular weight polyhydroxyl compounds |
| 04/07/1981 | US4260822 Oxidation of isobutane or propane |
| 04/07/1981 | US4260821 From vapor phase oxidation of methacrolein, polymerization inhibitor and high oxygen concentration |
| 04/07/1981 | US4260820 Method of preparing aliphatic carboxylic acids |
| 04/07/1981 | US4260817 Hydrogenation of p-xylene oxidation by-products using catalyst containing palladium or platinum with other metal |
| 04/07/1981 | US4260813 Ester interchange of ethylene glycol monoethyl ether and ethyl acetate using acidic ion exchange resin catalyst, distillation of by-product ethanol |
| 04/07/1981 | US4260810 Carbonylation, esterification |
| 04/07/1981 | US4260808 Catalytic process for the conversion of toluene to equimolar amounts of phenol acetate and methylene diacetate |
| 04/07/1981 | US4260804 Processes for preparing calcitroic acid and esters thereof |
| 04/07/1981 | US4260803 Fireproofing, herbicides, fungicides |
| 04/07/1981 | US4260633 Insecticides, miticides |
| 04/07/1981 | US4260590 Recovery of salts of anthraquinone disulfonic acid in the Stretford process |
| 04/07/1981 | US4260560 Preparation of sulfamyl halides |
| 04/07/1981 | US4260559 Substituted urea, oleum |
| 04/07/1981 | US4260558 From hydroxy nitroso aromatic and hydrazine, noncatalytic reaction |
| 04/07/1981 | US4260520 For oxidative dehydrogenation of ethylbenzene to styrene, oxides of cobalt, phosphorus and molybdenum and/or potassium on support |
| 04/07/1981 | US4260503 Extreme pressure and antiwear agents |
| 04/07/1981 | US4260476 Separation of aromatic hydrocarbons from petroleum fractions |
| 04/07/1981 | US4260411 Herbicides, fungicides |
| 04/07/1981 | US4260410 Herbicidal and plant-growth-regulating N-haloacetylphenylamino carbonyl oximes |
| 04/07/1981 | CA1098919A1 Vapor phase isomerization of methyl-substituted aromatic hydrocarbons |
| 04/07/1981 | CA1098918A1 Isomerization process |
| 04/07/1981 | CA1098917A1 Process for the hydroformylation of olefins |
| 04/07/1981 | CA1098916A1 Process for the production of a phenol and a carbonyl compound by the catalysed decomposition of an aromatic hydroperoxide |
| 04/07/1981 | CA1098915A1 Nitriles and method for their preparation |
| 04/07/1981 | CA1098903A1 Preparation of vincadifformine |
| 04/07/1981 | CA1098901A1 Process for the manufacture of sulfuric acid semi- ester compounds |
| 04/07/1981 | CA1098888A1 Production of phenols and catalyst therefor |
| 04/02/1981 | WO1981000853A1 Liquid crystal material with low value of optical anisotropy and method of making it |
| 04/02/1981 | WO1981000849A1 Novel process and intermediates useful in the preparation of sympathomimetic amines |
| 04/02/1981 | WO1981000846A1 The use of perfluorosulfonic acid resins as catalysts for preparing esters |
| 04/01/1981 | EP0026154A1 Process for preparing 4,4'-dinitrostilbene-2,2'-disulfonic acid and its salts and its use |
| 04/01/1981 | EP0026057A1 Synthesis reactor and processes |
| 04/01/1981 | EP0026041A1 A method for producing olefins and/or ethers of high octane number |
| 04/01/1981 | EP0026040A1 Substituted benzophenone hydrazones, pesticidal compositions containing them and method of combating pests |
| 04/01/1981 | EP0026030A1 Conversion of toluene over zeolite ZSM-48 |
| 04/01/1981 | EP0025997A1 N,N'-Dialkylaminoalkylethylene diamines and process for their production |
| 04/01/1981 | EP0025961A1 Process for the production of 1,2-diols containing a higher number of carbon atoms |
| 04/01/1981 | EP0025940A1 Process for the hydroxylation of olefinically unsaturated compounds |
| 04/01/1981 | EP0025932A1 Process for the preparation of 3,3-dimethyl-4-pentene amides |
| 04/01/1981 | EP0025926A1 Process for the preparation of monoaroylated 1,4-diamino anthraquinones |
| 04/01/1981 | EP0025925A1 Process for the preparation of alpha-cyano-phenoxy benzylic esters |
| 04/01/1981 | EP0025919A1 A process for preferentially removing more planar molecules from mixtures with less planar molecules |
| 04/01/1981 | EP0025906A1 1-Monohalogenated isocyanates; process for the preparation of mixtures of 1-monohalogenated isocyanates and 1-2-unsaturated isocyanates |
| 04/01/1981 | EP0025892A1 Process for the hydroxylation of styrene and of styrene derivatives |
| 04/01/1981 | EP0025891A1 Process for the hydroxylation of cyclic olefines with one or two double bonds |
| 04/01/1981 | EP0025890A1 Process for the hydroxylation of low-chain aliphatic mono- or diolefines |
| 04/01/1981 | EP0025887A1 Sulfonylcarboxylic acid derivatives |
| 04/01/1981 | EP0025883A1 Electrochemical process for the preparation of 4-tert.-butoxy-benzaldehyde-dialkylacetals, their use and 4-tert.-butoxy-benzaldehyde-dimethylacetal |
| 04/01/1981 | EP0025870A1 Cyclopentadecen-8-one-1, process for its preparation, and its use as odorant |
| 04/01/1981 | EP0025869A1 3-Methyl-cyclohexadecen-5-one-1, process for its preparation, and its use as odorant |
| 04/01/1981 | EP0025857A1 Organic sulfoxides having a latent allyl group, process for preparing the same and pharmaceutical antibacterial composition comprising the same |
| 04/01/1981 | EP0025846A1 Improved process for the preparation of vinylcyclopropane derivatives |
| 04/01/1981 | EP0025843A1 Preparation of monoalkyl ethers of hydroxyphenols and their transformation into hydroxycumaranes |
| 04/01/1981 | EP0025841A1 Diastereomeric salts of malic acid and 2-amino-1-butanol and process for the scission of racemic malic acid |
| 03/31/1981 | US4259537 Alkylation and transalkylation to give product rich in 1,4-isomer; group 6 oxide |
| 03/31/1981 | US4259536 Catalytic hydrogenation of fatty acid |
| 03/31/1981 | US4259534 Method for the production of 2,4,6-tri(3,5-ditertiary butyl-4-hydroxybenzyl) mesitylene |
| 03/31/1981 | US4259530 In presence of rhodium source, triphenylphosphine, and triphenylarsine |
| 03/31/1981 | US4259526 Process for the preparation of mixtures of polyamines of the polyamino-polyaryl-polymethylene type |
| 03/31/1981 | US4259522 Process for the production of isophtahalic acid |
| 03/31/1981 | US4259520 From butadiene, carbon monoxide, and an alkanol in presence of pyridine and cobalt carbonyl catalyst |
| 03/31/1981 | US4259519 Process for the carbonylation of diolefins |
| 03/31/1981 | US4259518 3-Methyl-5-keto-α,ω-alkenedioic acids and esters |
| 03/31/1981 | US4259511 Treatment with aqueous permanganate solution |
| 03/31/1981 | US4259344 Fungicides, anthelmintics |
| 03/31/1981 | US4259332 Antilipemic, choleretic, antiinflammatory, analgesic, antipyretic |
| 03/31/1981 | US4259312 Pressure container |
| 03/31/1981 | US4259263 Halogenated hydrocarbons and a method for their preparation |
| 03/31/1981 | US4259261 Oxidation color dyes for hair |
| 03/31/1981 | US4259259 Preparation of β-aminopropionamides |
| 03/31/1981 | US4259258 Chlorination of corresponding amide in dilute mineral acid |
| 03/31/1981 | US4259257 1-Phenyl-2-amino-1,3-propanediol-N-aryloxyalkyl derivatives |
| 03/31/1981 | US4259255 Isocyanatoaryl sulfonates |
| 03/31/1981 | US4259248 Process for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone |
| 03/31/1981 | US4259211 Catalyst for the oxidation of acrolein and methacrolein to acrylic acid and methacrylic acid, respectively |