Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
01/1981
01/20/1981CA1094107A1 Process for the preparation of substituted benzohydrols
01/20/1981CA1094102A1 Process for the production of 2,2-dimethyl-5-(2,5- xylyloxy)valeric acid
01/20/1981CA1094098A1 Simultaneous production of methacrylic acid and a methacrylate or acrylic acid and an acrylate
01/20/1981CA1094095A1 Asymmetric catalysis
01/14/1981EP0022236A1 Lithium soaps, their use as thickeners in lubricant oils or lubricant greases, and lubricant greases containing them
01/14/1981EP0022229A1 Substituted phenol ethers, their preparation, intermediates therefor, pharmaceutical compositions containing them and the preparation thereof
01/14/1981EP0022185A1 Process for the preparation of chloroacetyl chloride
01/14/1981EP0022157A1 3-Methyl-5-keto-alpha,omega-alkendioic acids and their esters, process for their preparation and their use for the preparation of macrocyclic beta-methyl ketones
01/13/1981US4245123 Oxidizing polyoxyethylene or polyoxypropylene glycol
01/13/1981US4245118 Oxidation of unsaturated aldehydes
01/13/1981US4245116 Racemization of optically active 2-(4-chlorophenyl)-3-methylbutyric acid
01/13/1981US4245115 Selective carbonylation of olefinically unsaturated hydrocarbons using palladium-arsine or -stibine catalysts
01/13/1981US4245078 Process for producing terephthalic acid
01/13/1981US4244879 Catalytic oxidation of butane, butene, or butadiene with mixed oxides of vanadium and phosphorus
01/13/1981US4244878 Preparation of maleic anhydride
01/13/1981US4244877 Process for the preparation of hexahydrophthalic acid anhydride
01/13/1981US4244873 Perfumes, chemical intermediates
01/13/1981US4244776 Continuous manufacturing by spraying an aqueous potassium sorbate solution onto potassium sorbate particles fluidized by heated air
01/13/1981CA1093576A1 Phenoxy-phenoxy propionic acid derivatives
01/13/1981CA1093567A1 Maleic anhydride production
01/13/1981CA1093566A1 Maleic anhydride production with recycle treatment
01/07/1981EP0021926A1 Process for the preparation of optically active allethrolone
01/07/1981EP0021925A1 Process for preparing optically active alpha-cyanoalcohols
01/07/1981EP0021766A2 Inhibitors of mammalian collagenase
01/07/1981EP0021747A1 Process for the preparation of terephthalic acid
01/07/1981EP0021555A1 Energy generating process and novel fuel therefor
01/07/1981EP0021528A1 Process for the selective hydrogenation of triglyceride oils and products so obtained
01/07/1981EP0021525A1 Process for the preparation of carboxylated compounds
01/07/1981EP0021444A1 Process for producing two-carbon atom oxygenated compounds from synthesis gas with minimal production of methane
01/07/1981EP0021443A1 Process for producing two-carbon atom oxygenated compounds from synthesis gas with minimal production of methane
01/07/1981EP0021433A1 Method of purifying mixtures of fatty acids or esters thereof
01/07/1981EP0021373A2 Process for the preparation of aromatic dicarboxylic acid dichlorides and their use in the preparation of polycondensates
01/07/1981EP0021325A1 Vanadiumpentoxide, titanium oxide, phosphorus, rubidium and/or cesium and possibly zirconium oxide containing support catalyst and its use
01/07/1981EP0021241A1 Process for the production of oxygenated hydrocarbon compounds and olefines from synthesis gas
01/07/1981EP0021221A1 Process for the dimerization of hexafluoropropene oxide
01/07/1981EP0021160A1 Process for the preparation of trans-3,3-dimethyl-cyclopropane-1,2-dicarboxylic acid
01/07/1981EP0021121A1 1,2,4-Triazine derivatives, process for preparing such compounds and pharmaceutical compositions containing them
01/07/1981EP0021118A1 Liquid phase catalytic co-oxidation of unsaturated compounds and aldehydes or ketones
01/07/1981EP0021113A1 Process for the preparation of 3,3-dimethyl-cyclopropane-1,2-dicarboxylic acid esters, intermediates therefor and their production
01/07/1981EP0021112A1 Process for the preparation of derivatives of 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid, as well as the dichloride of 1,3-dibromo-2,2-dimethyl-propane-1,3-dicarboxylic acid and its monoesterchlorides as intermediary products
01/07/1981EP0020846A1 2-Chloro-2-alkyl substituted peroxyesters
01/06/1981US4243820 Method for the preparation of carboxymethyloxysuccinic acid
01/06/1981US4243805 Neuroleptic agents
01/06/1981US4243682 Fluoronaphthylones
01/06/1981US4243636 Apparatus for the continuous liquid-phase catalytic oxidation of alkyl-substituted aromatic compounds
01/06/1981US4243599 Stabilization by dipicolinic acid of the epoxidation of a lower olefin with per-p-toluic acid
01/06/1981CA1093091A1 Polyprenyl carboxylic acid compound and hypotensive agent containing it as active ingredient
01/06/1981CA1093089A1 Maleic anhydride process
01/06/1981CA1093069A1 Cyclopentane derivatives
01/06/1981CA1093049A1 Residue treatment process
12/1980
12/30/1980US4242525 Process for producing salts of pyruvic acid
12/30/1980US4242519 Novel α-thio-alkanoic acid derivatives
12/30/1980US4242309 Chemical reactors
12/30/1980US4242278 Process for the preparation of 2-(2',2',2'-trihalogenoethyl)-4-halogenocyclobutan-1-ones
12/30/1980US4242145 Process for the simultaneous production of fructose and gluconic acid from glucose-fructose mixtures
12/30/1980US4242128 Adding iron particles to plate out metal phthalates
12/23/1980US4241220 Liquid-phase catalytic oxidation of p-xylene
12/23/1980US4241219 Recovering halogen values such as methyl iodide or iodide salts by scrubbing the vapor phase product
12/23/1980US4241081 Cyclopropanecarboxylate pesticides
12/23/1980US4240930 Oxides of molybdenum, copper, phosphorus, antimony, and cesium
12/23/1980CA1092152A1 Process for preparing 3-chloro-4- cyclohexylphenylglycolic acid
12/23/1980CA1092132A1 Process for obtaining 2,3-dichloro-4-(2- thenoyl)phenoxyacetic acid
12/23/1980CA1092086A1 Catalyst for oxidation reactions and process for its production
12/16/1980US4239915 Surfactants, intermediates of chromium complexes
12/16/1980US4239914 Process for preparing 2-(6'-methoxy-2'-naphthyl)-propionic acid
12/16/1980US4239913 Process for preparing 2-hydroxynaphthalenecarboxylic acids
12/16/1980US4239773 Insecticidal esters of certain substituted 7-oxabicyclo[2.2.1]2,5-heptadiene methanols
12/16/1980US4239698 Process for preparing carboxylic acid anhydrides
12/16/1980CA1091678A1 Process for recovering maleic anhydride by condensation
12/10/1980EP0020065A1 A method for inhibiting the polymerization of acrylic monomers in aqueous liquids containing them
12/09/1980US4238626 Anticholesterol and antilipemic agents
12/09/1980US4238625 Activators of lead and/or bismuth and/or their compounds for oxidation with platinum or palladium catalyst
12/09/1980US4238507 Pharmacological compound with immunopotentiating activity and production and uses thereof
12/09/1980US4238492 Antilipemic agents
12/09/1980US4238467 From yttrium oxalate crystals
12/09/1980US4238428 Process for making a prilled product
12/09/1980US4238413 (3-Trifluoromethyl)-benzoyl cyanide and process for its production
12/09/1980US4238389 Valproate conjugation using dicarbonyls
12/09/1980US4238359 Tumbling granulation and roasting of a metal compound mixture also including a thallium, a group 1a, or group 2a compound; stabilization
12/09/1980US4238294 Process for recovering heavy metal ions or heavy metal ions and halogen values from solutions comprising a lower aliphatic monocarboxylic acid
12/09/1980CA1091240A1 Phenoxy-phenoxy-alkanecarboxylic acid derivatives having a herbicidal action, their production, compositions containing them, and their use
12/02/1980US4237318 Manufacture of aqueous methanolic solution of sodium formate
12/02/1980US4237317 By electrolytic condensation of adipic acid half esterified
12/02/1980US4237316 Novel 2-substituted-3,4-epoxycyclopentan-1-ones, 2-substituted-3,4-epoxycyclopentan-1-ols, and various 2-substituted-cyclopentenones
12/02/1980US4237315 Preparation of 5(halophenyl)salicylic acid compounds
12/02/1980US4237314 Catalytic oxidation of benzene and acetic acid
12/02/1980US4237313 Heating to 150c
12/02/1980US4237310 Acid catalyzed
12/02/1980US4237309 Method for the preparation of phenolic acetates and paraformaldehyde
12/02/1980US4237306 Electrophilic reactions with alkyl aryl ketones to produce methyl aryl alkanoates
12/02/1980US4237298 Aromatic acetic acid derivatives having sulfur atom at alpha-position and process for their preparation
12/02/1980CA1090815A1 Use of coated catalysts in the preparation of maleic anhydride therefor
12/02/1980CA1090811A1 .alpha.-THIO-ALKANOIC ACID DERIVATIVES
12/02/1980CA1090770A1 Preparation of methacrylic acid from methacrolein
12/02/1980CA1090768A1 Process for producing unsaturated aliphatic acids and catalysts therefor
12/02/1980CA1090767A1 Process for producing unsaturated aliphatic acids and catalysts therefor
12/02/1980CA1090705A1 4-trifluoromethylbenzoic acid derivatives
12/02/1980CA1090650A1 Concentrating aqueous solutions
11/1980
11/26/1980EP0019341A1 Method for the preparation of an alkali metal benzoate together with benzyl alcohol
11/26/1980EP0019132A1 Process for the preparation of alpha-halogen cyclobutanones