Synthesis of 2-Mercaptobenzothiazoles via DBU-Promoted Tandem Reaction of <i>o</i>-Haloanilines and Carbon Disulfide
作者:Fei Wang、Shangjun Cai、Zhipeng Wang、Chanjuan Xi
DOI:10.1021/ol2011105
日期:2011.6.17
An efficient strategy for the synthesis of a variety of 2-mercaptobenzothiazole derivatives has been developed. The reaction proceeded from o-haloaniline derivatives and carbon disulfide via a tandem reaction in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) to afford the corresponding 2-mercaptobenzothiazole derivatives in good to excellent yields.
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