A Convenient Metal-Free Method for the Synthesis of Benzothiazolethiones from o-Haloanilines and Carbon Disulfide

[摘要]：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 degrees C to give the corresponding 1,3-benzothiazole-2(3H)-thione derivatives in good-to-excellent yields.

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