A novel and efficient 4-oxothiazolidine-1,2-dithiole rearrangement induced by Lawesson's reagent
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Functionalized 1,2-dithioles have been synthesized by a ring opening-closing process of 5-substituted- and 5-unsubstituted-2-alkylidene-4-oxothiazolidines with Lawesson's reagent. The C-13 NMR data confirmed the meso-ionic structure of these aromatic-type 1,2-dithioles. (C) 2003 Elsevier Ltd. All rights reserved.
Keywords:thiazolidines / rearrangements / dithioles
Source:Tetrahedron Letters, 2003, 44, 37, 7087-7090
- Pergamon-Elsevier Science Ltd, Oxford