专利号:WO-2017175233-A1 优先权日:2016-04-04 标 题:Process for large scale liquid phase synthesis of carbetocin and its novel intermediates 发明人:Mohammed Khalid Anwer; Mohammed Mohosin Layek 权利人:DAVULURI RAMAMOHAN RAO 摘要:A process for large scale liquid phase synthesis of Carbetocin is disclosed. Novel intermediates of formula (A), formula (B), and processes for their preparation are also disclosed.
专利号:US-3992436-A 优先权日:1976-01-02 标题:Synthesis of oxalate esters from carbon monoxide and carboxylic ortho esters 发明人:ZEHNER LEE R 权利人:ATLANTIC RICHFIELD CO 摘要:A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of carboxylic ortho esters with carbon monoxide and oxygen-containing gas in the presence of a metal salt catalyst, an amine base and a catalytic amount of an alcohol. Preferably a catalytic amount of particular metal oxidizing salts is employed along with a catalytic amount of an acid or an amine salt compound. Alternatively various counterions and ligands of the metal salt catalysts may be employed.
专利号:US-4005131-A 优先权日:1976-01-02 标 题 :Synthesis of oxalate esters from carbon monoxide and acetals or ketals 发明人:ZEHNER LEE R 权利人:ATLANTIC RICHFIELD CO 摘要:A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of acetals and ketals with carbon monoxide and oxygen-containing gas in the presence of a metal salt catalyst, an amine base and a catalytic amount of an alcohol. Preferably a catalytic amount of particular metal oxidizing salts is employed along with a catalytic amount of an acid or an amine salt compound. Alternatively various counterions and ligands of the metal salt catalysts may be employed.
专利号:US-4041068-A 优先权日:1976-06-29 标题:Synthesis of oxalate esters by catalytic oxidative carbonylation of borate esters 发明人:ZEHNER LEE R; ZAJACEK JOHN G 权利人:ATLANTIC RICHFIELD CO 摘要:A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of orthoborate, metaborate and polyborate esters or mixtures thereof with carbon monoxide and oxygen or an oxygen-containing gas in the presence of a metal salt catalyst, an amine base and at least a catalytic amount of an alcohol. Preferably a catalytic amount of particular metal oxidizing salts are employed along with a catalytic amount of an amine salt compound which may be formed in situ by the addition of an acid. Alternatively various counterions and ligands of the metal salt catalysts may be employed.
专利号:US-4041067-A 优先权日:1976-07-21 标 题:Synthesis of oxalate esters by the oxidative carbonylation of amide acetals 发明人:ZEHNER LEE R; ZAJACEK JOHN G 权利人:ATLANTIC RICHFIELD CO 摘要:A process for the preparation of oxalate esters by the catalytic oxidative carbonylation of an amide acetal having the formula with carbon monoxide and oxygen or oxygen-containing gas in the presence of a metal salt catalyst, an amine base and a catalytic amount of an alcohol. Preferably a catalytic amount of particular oxidizing metal salts is employed along with a catalytic amount of an amine salt compound which may be formed in situ by the addition of an acid. Alternatively various counterions and ligands of the metal salt catalyst may be employed.
专利号:US-5565517-A 优先权日:1994-11-16 标题:Synthesis of organic polysulfide polymers 发明人:EFNER HOWARD F; SHAW JAMES E 权利人:PHILLIPS PETROLEUM CO 摘要:A process for preparing an organic polysulfide polymer, such as polyethylene trisulfide, is provided which comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a basic catalyst wherein the dimercaptan, elemental sulfur, and basic catalyst are each present in an effective amount to effect the preparation of the organic polysulfide polymer. A process for controlling the molecular weight of an organic polysulfide polymer is also provided which comprises contacting a mercaptan with a dimercaptan and sulfur, in the presence of a basic catalyst, under conditions sufficient to prepare an organic polysulfide polymer.