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■ Synthesis of 2-Selenoxo-1,3-thiazolidin-4-ones and 2-Selenoxo-1,3-thiazinan-4-ones from Isoselenocyanates

Geoffroy L. Sommen, Anthony Linden, and Heinz Heimgartner*

*Institute of Organic Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland

Abstract

2-Selenoxo-1,3-thiazolidin-4-ones (selenorhodanines) (7a-h) and 2-selenoxo-1,3-thiazinanes (8a-c) can easily be synthesized in a one-pot procedure from aryl isoselenocyanates and α- and β-mercapto carboxylic acids, respectively.