Bis(benzotriazolyl)methanethione

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

References

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