Patents for C07B 61 - Other general methods (69,072)
08/1981
08/11/1981US4283532 Process for preparation of o-(2,6-dichloroanilino)phenylacetic acid and novel intermediate for use in preparation of the same
08/11/1981US4283307 Catalyst structure for the partial oxidation of n-butane to produce maleic anhydride
08/11/1981US4283305 Catalyst composition and its use for oligomerizing olefins
08/11/1981CA1106858A1 Process for the recovery of substituted phosphines and active rhodium
08/11/1981CA1106857A1 Process for the preparation of 3-(4-methyl-3- cyclohexen-1-yl) butyraldehyde
08/11/1981CA1106856A1 Oxydehydrogenation of certain c.sub.4 saturated oxyhydrocarbon compounds
08/11/1981CA1106855A1 Process for preparing diesters of dicarboxylic acids
08/11/1981CA1106854A1 Process for the preparation of para-nitroso- diphenylhydroxylamines
08/05/1981EP0033084A1 Process and apparatus for the secure feeding of molecular oxygen or gases containing it in the oxidation of hydrocarbons
08/05/1981EP0032976A1 A method for separating 2,6-xylenol from admixtures with meta-para-cresols, a method for methylating meta-para-cresols, and a catalyst
08/05/1981EP0032974A1 A method for the synthesis of 2,3,6-trimethylphenol
08/04/1981US4282389 Process for the simultaneous manufacture of pure MTBE and a substantially isobutene-free mixture of C4 -hydrocarbons
08/04/1981US4282374 Vapor phase, copper catalyst, phosphorus compound
08/04/1981US4282368 Reacting aromatic carbamic acid ester and olefin, inorganic or sulfonic acid
08/04/1981US4282170 9-Carbamoyl-9-(2-cyanoethyl)fluorenes
08/04/1981US4282157 Process for the preparation of polyalkenyl-substituted succinic anhydride
08/04/1981US4282116 Supported catalyst containing vanadium and titanium and/or zirconium for the preparation of phthalic anhydride
08/04/1981CA1106409A1 Base modified catalysis in the styrenation of diphenylamine
08/04/1981CA1106407A1 Hydroformylation process
08/04/1981CA1106393A1 Process for the production of methyl acrylate
08/04/1981CA1106352A1 Production of perchloromethyl mercaptan
08/04/1981CA1106349A1 Catalyst and process for the preparation of amines from alcohols
07/1981
07/29/1981EP0032623A2 Production of methyl and ethylamines with rhodium-iron catalysts
07/29/1981EP0032621A1 Improvement in selective cracking reactions by cofeeding organic amine or ammonia
07/29/1981EP0032618A1 Oxidation and ammoxidation catalysts and their uses
07/29/1981EP0032553A1 Pi-indenyl-(cycloocta-1,5-diene) cobalt, pi-trimethylsilylcyclopentadienyl-(cycloocta-1,5-diene) cobalt, pi-cyclopentadienyl-alpha,alpha'-bipyridyl cobalt and process for their preparation, and their use
07/29/1981EP0032548A1 Process for preparing aryl and heteroaryl hexadienoic acids
07/29/1981EP0032525A2 Hydrogenation regeneration process for catalysts that contain cobalt, utilised in hydrocarboxylation
07/29/1981EP0032524A2 Process for the extractive regeneration of catalysts that contain cobalt, utilised in hydrocarboxylation
07/28/1981US4281202 Reacting excess hydrogen sulfide with an organic oxide using an alkali-metal zeolite as catalyst; by-product inhibition
07/28/1981US4281195 In the presence of a catalyst
07/28/1981US4281193 Process for preparing substituted formamides
07/28/1981US4281175 Process for producing dimethylaminoethyl methacrylate
07/28/1981US4281173 Preparation of unsaturated diesters by catalytic oxidative carbonylation of diolefins
07/28/1981US4280929 Attrition resistant-higher active component fluid bed catalysts
07/28/1981US4280928 Catalyst compositions and their use for the preparation of methacrolein
07/28/1981US4280820 Coprecipitated catalyst of improved pore size for methanation
07/28/1981CA1105947A1 Catalyst pellet stabilization in the preparation of polyamines from polynitriles
07/28/1981CA1105946A1 Hydroformylation process
07/28/1981CA1105944A1 Process for preparing 2-methylenealdehydes
07/28/1981CA1105943A1 Process for the preparation of terephthalic acid
07/22/1981EP0032455A2 Improved heterogeneous catalyst
07/22/1981EP0032377A2 Process for the addition of Si-bound hydrogen to aliphatic multiple bonds
07/21/1981US4279778 Process for the preparation of a sulphided fluorine-containing nickel-tungsten catalyst for the conversion of hydrocarbons
07/21/1981CA1105494A1 Conversion of olefinic naphtha
07/21/1981CA1105493A1 Low pressure xylene isomerization
07/21/1981CA1105487A1 Process for continuously producing oxygen-containing compounds
07/16/1981EP0024091A4 Hydroformylation process and novel transition metal catalysts.
07/16/1981EP0023924A4 Tetraalkyl phosphonium substituted phosphine and amine substituted transition metal complexes.
07/15/1981EP0032012A2 Oxidation and ammoxidation catalysts and their use
07/15/1981EP0031895A1 Process for the preparation of 1,2-dichloroethane
07/14/1981US4278824 Dehydrocoupling of toluene
07/14/1981US4278820 Reacting alkylene oxide with aliphatic alcohol, ion exchanged clay catalyst
07/14/1981US4278819 Process for the production of acetaldehyde dimethyl acetal
07/14/1981US4278802 Methylthio-/p-/2-thienylcarbonyl/phenyl/propionic acid or ester, pharmaceutical intermediates
07/14/1981US4278614 Process for the catalytical preparation of acrylonitrile
07/14/1981US4278609 Process for the selective hydrogenation of triglyceride oils with a metallic catalyst in the presence of ammonia
07/14/1981US4278562 Manufacture of an ethylene oxide catalyst
07/14/1981CA1105060A1 Hydrocarbonylation of methanol to ethanol in the presence of added compounds
07/14/1981CA1105059A1 Process for preparing polyols from a cyclic acetal
07/14/1981CA1105057A1 Oxidation process using metal nitro complex
07/14/1981CA1105050A1 Peroxycarboxylic acids and process for the manufacture thereof
07/09/1981WO1981001844A1 Proton-catalysed reactions catalysed by hydrogen ion-exchanged layered clays
07/09/1981WO1981001843A1 Methods of synthesizing hexafluoroisopropanol from impure mixtures and synthesis of a fluoromethyl ether therefrom
07/08/1981EP0031784A2 Process for preparing ethyl carboxylates from their lower homologues
07/08/1981EP0031696A1 Process for the preparation of vanadium phosphorus catalysts, catalysts so prepared, use of these catalysts for the production of maleic anhydride and maleic anhydride so produced
07/08/1981EP0031694A1 Production of carboxylic acid salts
07/08/1981EP0031693A1 Promoted tin-antimonate catalysts and use thereof
07/08/1981EP0031687A1 Proton-catalysed reactions catalysed by hydrogen ion-exchanged layered clays
07/08/1981EP0031625A1 Process for the preparation of a 2-pyrrolidone
07/08/1981EP0031606A1 Process for the co-production of carboxylic acids and carboxylic acid esters
07/08/1981EP0031472A2 Process for the manufacture of methanisation catalysts
07/08/1981EP0031435A1 Process for preparing glycidyl ethers of monovalent or polyvalent phenols
07/07/1981US4277633 Palladium complex, process for the preparation thereof and catalyst for producing 1,3-diene oligomers
07/07/1981US4277631 From a trisubstituted silyloxy derivative of cyclohexadienone by intramolecular diels-alder condensation
07/07/1981US4277601 Alcoholysis of corresponding 3-n-protected carbamoyloxymethyl compound in anhydrous solvent in presence of basic catalyst
07/07/1981US4277418 Method of preparing alkoxymethylene compounds
07/07/1981US4277369 Multistage, washing with hydrogen, combustion of coke deposits
07/07/1981CA1104591A1 Lubricant
07/07/1981CA1104587A1 Catalytic hydroformylation of internal olefins
07/01/1981EP0031265A1 Process for the catalytic preparation of thieno (3,2-c) pyridine
07/01/1981EP0031244A1 Process for producing methanol from synthesis gas with palladium-calcium catalysts
07/01/1981EP0031243A1 Preparation of methanol from synthesis gas with promoted palladium catalysts
07/01/1981EP0031242A1 Production of acetamides with rhodium-manganese catalysts
07/01/1981EP0031207A1 Process for preparing liquid polyisocyanate compositions, and their use
07/01/1981EP0031205A2 Carbonylation of ethylene or propylene
07/01/1981EP0031200A1 Method of recovering bromine from methyl bromide
07/01/1981EP0031176A2 Process for conversion of certain trans 3,4-methano-pyrrolidine derivatives into their corresponding cis isomers, a novel unsaturated intermediate in the process and derivatives thereof, a process for preparing the novel intermediate and derivatives thereof, pollen-suppressing compositions and a method of producing F1hybrid seed
07/01/1981EP0031108A1 Process for the preparation of 5-oxo-alkanoic acids
07/01/1981EP0031100A1 Process for the preparation of formyl-valeric acid esters
06/1981
06/30/1981US4276437 Shape selective reactions involving zeolite catalyst modified with group IIIB metal
06/30/1981US4276419 Process for the preparation of C-substituted pyridines and/or hydrogenated C-substituted pyridines, C-substituted quinolines and/or hydrogenated quinolines
06/30/1981US4276231 Process for the preparation of optionally substituted benzoyl chloride
06/30/1981US4276225 Decarbalkoxylation of carboxylic acid esters
06/30/1981US4276199 Impregnating support with hydrogen molybdenum (or tungsten) octacyanide, roasting, catalysts
06/30/1981CA1104164A1 So.sub.2 stripping in fluorosulfuric acid catalyst regeneration
06/30/1981CA1104163A1 Process for the manufacture of lower alkenes from methanol and/or dimethyl ether
06/30/1981CA1104116A1 Process for reactivating fluorination catalysts
06/30/1981CA1104114A1 Method for preparing a catalyst and intermediate formed thereby
06/30/1981CA1104113A1 Silver based catalysts and method for preparing ethylene oxide