CAS: 25586-42-9; Phosphorous Acid, Tris(Methylphenyl) Ester

专利信息

专利号:US-11059835-B2
优先权日:2014-08-15
标 题 :Synthesis of cephalosporin compounds
发明人：WALLER DAVID; GAZDA GREGORY; MINDEN ZACHARY; BARTON LISA; LEIGH CLIFTON
权利人:MERCK SHARP & DOHME
摘要:Provided herein is a method for the synthesis of cephalosporin antibiotic compounds comprising a palladium-catalyzed coupling reaction.

专利号:EP-0723477-B1
优先权日:1993-10-12
标 题:Improved synthesis of nickel phosphine and phosphite catalysts
发明人：BRYNDZA HENRY E
权利人:DU PONT
摘要:An improved process for the synthesis of zerovalent nickel catalyst useful for the hydrocyanation of olefins, wherein catalyst formation is improved by applying sonication during formation of catalyst. The sonication may be applied to the catalyst reactant mixture containing elemental nickel and a ligand; or alternatively, the sonication may be applied to the elemental nickel prior to the addition of ligand to the reaction mixture.

专利号:US-7470805-B2
优先权日:2002-12-23
标题:Process of synthesis of compounds having nitrile functions from ethylenically unsaturated compounds
发明人：ROSIER CECILE; MARION PHILIPPE; BOURGEOIS DAMIEN
权利人:RHODIA OPERATIONS
摘要:A process of hydrocyanation of diolefins such as butadiene is carried out in the presence of a catalytic system comprising a transition metal and mono- and pluri-dentate organophosphorus ligands. The reaction medium containing branched nitrites subsequently is isomerized in the absence of hydrogen cyanide.

专利号:US-3631191-A
优先权日:1970-04-08
标 题 :Synthesis of zero valent nickel-tetrakis triaryl phosphite complexes
发明人：KANE NEAL JAMES; BROCKWAY JOHN
权利人:DU PONT
摘要:THE PROCESS FOR PREPARING A ZERO VALENT NICKELPHOSPHITE COMPLEX BY REACTING A DIVALENT NICKEL COMPOUND WITH A REDUCING METAL IN THE PRESENCE OF A TRIARYL PHOSPHITE IN A SATURATED ALIPHATIC DINITRILE SOLVENT. THE REACTION MIXTURE SEPARATES INTO MULTIPLE PHASES, ONE OF WHICH CONTAINS THE DESIRED COMPLEX SUBSTANTIALLY FREE OF BY-PRODUCT AND ANOTHER PHASE CONTAINING THE BY-PRODUCT OF THE REDUCING ACTION.

专利号:US-4557809-A
优先权日:1985-04-12
标 题 :Electrochemical synthesis of zerovalent transition metal organophosphorus complexes
发明人：ALBERTSON CLARENCE E
权利人:BORG WARNER CHEMICALS INC
摘要:An electrochemical process is provided for the production of a zerovalent metal/organo-phosphorus ligand complex by passing a current through an electrolyte bath which includes a transition metal salt and a trivalent organic phosphorous compound, the improvement comprising the current being a pulsed direct current.

专利号:US-7220884-B2
优先权日:2004-02-10
标 题 :Hydroaminomethylation of olefins
发明人：BRIGGS JOHN R; WHITEKER GREGORY T; KLOSIN JERZY
权利人:DOW GLOBAL TECHNOLOGIES INC
摘要:The present invention relates to a method comprising the step of contacting under hydroaminomethylation conditions, an olefin, an amine, a rhodium-phosphorous ligand, and synthesis gas (syngas). In particular, it has been discovered that, under some circumstances, a neutral rhodium-monodentate phosphite ligand is prescribed. The invention provides a simple way of making, in high yields and regiospecificity, a variety of products, including pharmacologically active products such as ibutilide, terfenadine, and fexofenadine, and derivatives thereof.