Synthesis of thienothiazocinoisoindolediones and thienothiazinoisoindolones from mercaptothiophenes and chloromethylphthalimide
作者:Pierre Netchitaïlo、Mohamed Othman、Bernard Decroix
DOI:10.1002/jhet.5570340150
日期:1997.1
Chloromethylphthalimide on 2-or 3-mercaptothiophene. Reduction of 3a,b and Wittig reaction using carbethoxycarbonyltriphenyl-phosphorane gave the corresponding acetic acids 5a,b which cyclized under Friedel and Crafts conditions to lead the thienothiazocinoisoindolediones 6a,b. Thienothiazinoisoindolones 7a,b were obtained from hydroxyisoindolones derivatives 4a,b in acid conditions via an acyliminium
通过氯甲基邻苯二甲酰亚胺对2-或3-巯基噻吩的作用合成了2-噻吩基硫代甲基邻苯二甲酰亚胺3a,b。用碳乙氧基羰基三苯基-膦还原3a,b和Wittig反应得到相应的乙酸5a,b,其在Friedel和Crafts条件下环化以导致噻吩并噻唑并异吲哚二酮6a,b。噻吩并噻吩并异吲哚并酮7a,b是在酸性条件下通过酰化亚胺离子从羟基异吲哚并酮衍生物4a,b获得的。