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Synlett 2010(13): 2045-2046  
DOI: 10.1055/s-0030-1258508
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© Georg Thieme Verlag Stuttgart ˙ New York

Bis(benzotriazolyl)methanethione

Archana Singh*
Senior Research Fellow, Department of Chemistry, Faculty of ­Science, Banaras Hindu University, Varanasi 221005, India
e-Mail: archana_chembhu@yahoo.co.in;
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Publication History

Publication Date:
28 July 2010 (online)

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Introduction

Bis(benzotriazolyl)methanethione, a reagent derived from benzotriazole, is a thiophosgene equivalent for thioacylations and for the synthesis of different thiocarbonyl compounds. [¹] [²] Compared to thiophosgene, bis- (benzotriazolyl)methanethione is found to be more advantageous due to its high stability and less toxicity. It is a crystalline solid, easy to handle, and it can be stored for years at room temperature. Bis(benzotriazolyl)methan­ethione can be obtained in high yield as yellow crystals (mp 170-171 ˚C) starting from benzotriazole (Scheme  [¹] ). [³]

Scheme 1