Patents for C07B 61 - Other general methods (69,072)
02/1991
02/19/1991US4994615 Process for the preparation of optically active secondary arylamines
02/19/1991US4994614 Reacting tertiary amines with aqueous hydrogen peroxide in presence of synergistic combination of ascorbic acid and carbon dioxide; purity
02/19/1991US4994608 By-product inhibition
02/19/1991US4994603 Reacting methanol and carbon monoxide in presence of sodium methylate, binding sodium ions with nonionic polyethers
02/19/1991US4994600 Process for preparing trans-β-benzoylacrylic acid ester
02/19/1991US4994590 Excellent catalyst for asymmetric hydrogenation
02/19/1991US4994583 Process for the preparation of epsilon-caprolactone
02/19/1991US4994498 Mixture also containing molybdenum sulfide and alkali metal compounds
02/19/1991US4994249 Containing strontium; hydrocracking, reforming, saparation
02/19/1991CA1280539C Process and catalyst for production of a bisphenol
02/19/1991CA1280447C Tertiary olefin process
02/19/1991CA1280445C Process for the preparation of perfluoroalkylalkenols
02/19/1991CA1280438C Process for the co-production of aromatic carboxylates and alkyl iodides
02/19/1991CA1280437C Process for the co-production of aromatic carboxylates and alkyl iodides
02/19/1991CA1280426C 4-benzyloxy-3-pyrrolin-2-on-1-yl acetamide, its production and use
02/19/1991CA1280422C Process for the preparation of an n-aromatic-n-acyl urea
02/19/1991CA1280400C Process for purifying and recovering catalyst solution contaminated during the carbonylation of methyl acetate and/or dimethylether
02/18/1991EP0420857A4 Reciprocating dental tool.
02/18/1991CA2021725A1 Method of making 1,1'-oxybis (3-nitro-5-trifluoromethyl)-benzene
02/15/1991WO1991002707A1 Process for preparing linear alpha-olefins from ethylene
02/15/1991CA2064832A1 Process for preparing linear alpha-olefins from ethylene
02/13/1991EP0412872A1 Catalytic composition and use thereof for oligomerising monoolefines
02/13/1991EP0412785A1 A method of pretreating a particulate catalyst
02/13/1991EP0412615A2 Vicinal di(hetero)alkylene organometalates and processes for the production of amines therewith
02/13/1991EP0412614A2 Amines catalysis
02/13/1991EP0412613A2 Amines catalysis using metallic phosphate condensation catalysts having a cyclic structure
02/13/1991EP0412612A2 Process of making polyalkylene polyamines
02/13/1991EP0412611A2 Promoted amines catalysis
02/13/1991EP0412596A1 Process for oxidising paraffinic compounds
02/13/1991EP0412551A2 Process for producing alpha, beta-unsaturated aldehyde
02/13/1991EP0412378A1 Process for producing alpha-keto-carboxylic acid ester
02/13/1991EP0412366A1 Process for the preparation of 2,5-dihydrofurans
02/13/1991EP0412361A2 Process for the preparation of 4-methylenetetrahydropyran
02/13/1991EP0412359A1 Method for the preparation of epoxysulphonates
02/13/1991CN1049151A Synthesis of alpha-hydroxy ketones
02/13/1991CA2023057A1 Process for reducing the content of primary and secondary amine in a tertiary amine
02/12/1991US4992610 Nickel chloride containing ziepler catalyst
02/12/1991US4992607 Using zeolite catalyst
02/12/1991US4992602 Catalytic decomposition of tert-butyl hydroperoxide in presence of metal phthalocyanine catalyst
02/12/1991US4992594 Process for the preparation of polyglycerols
02/12/1991US4992586 Dehalogenation of a halonitrobenzene compound
02/12/1991US4992585 Reacting N-methylacetoacetamide with chlorie to produce A-chloro-N-methyl acetoacetamide
02/12/1991US4992582 Koch synthesis from propylene, carbon monoxide and water in presence of hydrogen fluoride under pressure
02/12/1991US4992579 Catalytic oxidation using cerium, cobalt, manganese, zirconium, bromine containing catalyst
02/12/1991US4992578 Preparation of alkyl alkanethiolsulfonates
02/12/1991US4992572 Process for the preparation of organometallic compounds
02/12/1991US4992571 Method for making octyloxy substituted diphenyl iodonium hexafluoro metalloid salts
02/12/1991US4992566 Recovery of tertiary butyl hydroperoxide and tertiary butyl alcohol
02/12/1991US4992416 Isomeric formyl trimethylbicyclo[2.2.2]oct-7-enes
02/12/1991US4992406 Alumina or zirconia binder
02/12/1991CA1280128C Preparation process of trifluoromethyl iodide
02/12/1991CA1280125C Zeolite rho and zk-5 catalysts for conversion of methanol and ammonia to dimethylamine
02/12/1991CA1280124C Process for the preparation of 4-fluoroanilines from 4-halogenonitrobenzenes
02/12/1991CA1280122C Perfluoroalkylcetone preparation process
02/11/1991WO1991001806A1 Oxidation catalysts based on metalloporphyrine on a substrate
02/11/1991CA2039172A1 Supported oxidation metalloporphyrin catalyst for oxidation reactions
02/09/1991CA2022862A1 Catalytic composition and its use for the oligomerization of monoolefins
02/09/1991CA2022780A1 Promoted amines catalysis
02/09/1991CA2022777A1 Amines catalysis
02/09/1991CA2022776A1 Amines catalysis using metallic phosphate condensation catalysts having a cyclic structure
02/07/1991WO1991001298A1 Process for the preparation of aromatic nitriles
02/07/1991WO1991001295A1 Process for preparing quaternary ammonium compounds
02/07/1991WO1991001289A1 Substituted cyclohexanedione derivative
02/06/1991EP0412074A2 Process for producing N-Phosphonomethylglycine
02/06/1991EP0411817A2 Process for preparing N-alkyl-substituted aminophenols
02/06/1991EP0411721A2 Preparation of alkyl propionates
02/06/1991EP0411645A2 Method for preparing organohalosilanes
02/06/1991EP0411615A1 4-(N-substituted amino)-2-butynyl-1-ureas and thioureas and derivatives thereof as centrally acting muscarinic agents
02/06/1991EP0411456A1 Method for the preparation of 2-Imidazolines
02/06/1991EP0411417A1 Process for preparing aminomethylene compounds
02/06/1991EP0411410A2 Process for the preparation of octadienols
02/06/1991EP0411252A1 Process for the preparation of fluorobenzoic acids
02/06/1991EP0411084A1 Synthesis of hydrocarbyl amines.
02/06/1991EP0411019A1 Etherification of extracted crude methanol and conversion of raffinate
02/06/1991CN1049014A Organosilane compound
02/06/1991CN1049011A Ester production by hydrogenation of carboxylic acids and anhydrides
02/06/1991CN1011505B Titanium-aluminum-silicon-oxide molecular sieve compositions
02/06/1991CN1011489B Process for preparation of new magnesium alkali-zeolite
02/05/1991US4990718 Reacting benzene with the by product from alpha olefin dimerization; lubricants
02/05/1991US4990715 Producing aromatic hydrocarbons with catalysts containing gallium and silver
02/05/1991US4990712 Integrated cracking, etherification and olefin upgrading process
02/05/1991US4990707 Process for the ring chlorination of aromatic hydrocarbons
02/05/1991US4990705 Reacting biphenyl with bromine in solvent comprising organic sulfur compound, amide, or nitrile
02/05/1991US4990704 Haloethylation of aromatic hydrocarbons
02/05/1991US4990694 Optically active dimethyl heptanediols
02/05/1991US4990690 Process for preparing aromatic polyhydric alcohol
02/05/1991US4990689 2,4-bis(2-hydroxyhexafluoro-2-propyl)fluorobenzene and method of preparing same
02/05/1991US4990687 Alkylation of p-cresol with cyclohexanol or cyclohexene in presence of a pore, acidic zeolite
02/05/1991US4990681 Method for removing hydrogen fluoride from mixtures comprising aromatic ketones
02/05/1991US4990675 Oxidizing mercaptans with halogenated hydrocarbons in presence of hydroxides and phase transfer catalyst
02/05/1991US4990670 Method of making 1,1'-oxybis (3-nitro-5-trifluoromethyl)-benzene
02/05/1991US4990663 Mixing 3,4-dichloroaniline with an amine compound to improve storage stability and minimize dechlorination
02/05/1991US4990660 Preparation of aromatic hydroxycarboxylic acids
02/05/1991US4990659 Process for the manufacture of derivatives of benzoic acid
02/05/1991US4990658 Carbonylating 1-halo-/4-isobutylphenyl/ethane with carbon monoxide in water or alcohol using palladium complex catalyst
02/05/1991US4990655 Vapor phase hydrogenation using noble metal-rhenium catalyst
02/05/1991US4990651 Process for producing carboxylic acid esters
02/05/1991US4990647 Catalytic coupling of two different halogenaromatics
02/05/1991US4990645 Hydrocyanation process
02/05/1991US4990534 Aralkyl esters and processes for their preparation