A catalyst-free and additive-free method for the synthesis of benzothiazolethiones from <i>o</i>-iodoanilines, DMSO and potassium sulfide
作者:Xiaoming Zhu、Wenguang Li、Xiai Luo、Guobo Deng、Yun Liang、Jianbing Liu
DOI:10.1039/c8gc00477c
日期:——
Under catalyst-free and additive-free conditions, a novel, convenient, environment-friendly method for the synthesis of benzothiazolethiones from o-iodoanilines, K2S and DMSO has been developed.
Cleaner and greener synthesis of 3<i>H</i>-benzothiazole-2-thione and its derivatives
作者:Nitin Srivastava、Ram Kishore
DOI:10.1080/17415993.2020.1803321
日期:2021.1.2
A cleaner and greener method of synthesis of 3H-benzothiazole-2-thione is being reported in this communication. In this method, various o-iodoaniline derivatives are reacted with carbon disulfide in the presence of Cs2CO3 and tetramethyl ammonium bromide (TMAB) to give 3H-benzothiazole-2-thione and itsderivatives in higher yields. GRAPHICAL ABSTRACT
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