A Convenient Metal-Free Method for the Synthesis of Benzothiazolethiones from o-Haloanilines and Carbon Disulfide
作者:Chanjuan Xi、Peng Zhao、Fei Wang
DOI:10.1055/s-0031-1289713
日期:2012.5
A convenient method has been developed for the preparation of a variety of 1,3-benzothiazole-2(3H)-thiones. The reaction proceeds from an o-haloaniline derivative and carbon disulfide in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene at 80-140 ˚C to give the corresponding 1,3-benzothiazole-2(3H)-thione derivatives in good-to-excellent yields. cyclizations - heterocycles - benzothiazoles - amines
已经开发了一种方便的方法来制备各种1,3-苯并噻唑-2(3 H)-硫酮。反应是在80-140℃下,在1,8-二氮杂双环[5.4.0]十一碳-7-烯存在下,由邻卤代苯胺衍生物和二硫化碳进行的,得到相应的1,3-苯并噻唑-2(3 H)-硫酮衍生物,收率良好。 环化-杂环-苯并噻唑-胺-二硫化碳-串联反应