New method for the synthesis of 4,5-dihydro-1,4-benzothiazepin-3(2H)-ones derivatives
作者:T. A. Volovnenko、T. N. Tarasiuk、Yu. M. Volovenko、T. M. Tkachuk
DOI:10.1007/s10593-011-0872-3
日期:2011.11
A new method has been developed for the synthesis of 4,5-dihydro-1,4-benzothazepin-3(2H)ones derivatives by the acylation of N-substituted 2-chloro-5-nitrobenzylamines with acetylmercaptoacetyl chloride and α-acetylmercaptopropionyl chloride with subsequent removal of the S-acetyl protecting group and intramolecular nucleophilic substitution. The oxidation of 4,5-dihydro-1,4-benzothiazepin-3(2H)-ones
已开发出一种新方法,用于通过将N-取代的2-氯-5-硝基苄胺与乙酰巯基乙酰氯和α-乙酰巯基丙酰氯酰化来合成4,5-二氢-1,4-苯并benzo庚因-3(2H)一类衍生物随后除去S-乙酰基保护基并进行分子内亲核取代。已经研究了将4,5-二氢-1,4-苯并噻唑啉-3(2H)-ones氧化为相应的1,1-二氧化物。