An Improved Method for Preparation of<i>N</i>-Alkyl-2(3<i>H</i>)-benzothiazolone Analogs
作者:Yoo Tanabe、Takayuki Okabe、Akiko Kakimizu、Nobuo Ohno、Hirosuke Yoshioka
DOI:10.1246/bcsj.56.1255
日期:1983.4
A number of N-alkyl-2(3H)-benzothiazolone analogs could be prepared from N-monosubstituted aniline and chlorocarbonylsulfenyl chloride. The new method consists of carbamoylation of aniline and successive Friedel-Crafts type ring closure of an intermediate carbamoylsulfenyl chloride in the presence of suitable Lewis or protic acid catalyst.
一些 N-烷基-2(3H)-苯并噻唑酮类似物可以从 N-单取代苯胺和氯甲酰亚磺酰氯中制备出来。新方法包括苯胺的氨基甲酰化,以及在适当的路易斯酸或质酸催化剂存在下,中间产物氨基甲酰磺酰氯的连续弗里德尔-卡夫斯型闭环反应。