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Journal ArticleDOI

Synthesis of Imidazol-2-ylidenes by Reduction of Imidazole-2(3H)-thiones

Norbert Kuhn, +1 more
- 01 Jan 1993 - 
- Vol. 1993, Iss: 06, pp 561-562
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TLDR
In this article, an improved synthesis of the title compounds was reported, and the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gave the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the IMidazol-2ylidenes 3 in excellent yields
Abstract
An improved synthesis of the title compounds is reported. Reaction of the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gives the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the imidazol-2-ylidenes 3 in excellent yields

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