对氟甲苯置于盐酸,氢氧化钾,Tin,五氯化磷,硫酸,氢氟酸,硝酸体系中,化学反应生成2-甲氧基-5-三氟甲基苯胺 参考文献:Brown Et Al.,Journal Of The Chemical Society,1949,P. Spl. 113 标题:Brown Et Al.,Journal Of The Chemical Society,1949,P. Spl. 113
专利号:US-2009253913-A1 优先权日:2008-03-06 标题:Process for the preparation of sorafenib and salts thereof 发明人:ROSSETTO PIERLUIGI; MACDONALD PETER LINDSAY; CANAVESI AUGUSTO 权利人:ROSSETTO PIERLUIGI; MACDONALD PETER LINDSAY; CANAVESI AUGUSTO 摘要:Methods for the synthesis of the N-carbamoyl imidazole (I) and its 1:1 adduct with imidazole are provided. Methods for the preparation of these crystalline intermediates in a high state of purity are also provided. These intermediates react cleanly under mild conditions to produce sorafenib in high yield and purity, without generating difficult-to-remove impurities.
专利号:US-2016194279-A1 优先权日:2012-12-09 标 题 :One pot process for the conversion of aroyl chlorides to acyl thioureas 发明人:CHEPURI VENKATA RAMANA; BEERAN SENTHILKUMAR 权利人:COUNCIL SCIENT IND RES 摘要:The present invention disclose an improved one pot process for synthesis of acyl thioureas of formula (I), with yield greater than 80%, from aroyl chlorides of formula (I) wherein, R′ is an aryl or a heteroarylene group substituted with one or more groups selected from hydrogen, alkyl, alkylene, alkynyl, alkoxy, alkenyloxy, halo, hydroxyl, nitro, amino, carboxyl, ester, halogenated hydrocarbon or an aryl or heteroaryl; R″ and R′″ are selected independently from hydrogen, alkyl, alkylene, alkynyl, alkoxy, alkenyloxy, halo, hydroxyl, nitro, amino or halogenated hydrocarbon.