Synlett 2010(6): 973-975  
DOI: 10.1055/s-0029-1219558
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

Water-Mediated Multicomponent Reaction: A Facile and Efficient Synthesis of Multisubstituted Thiazolidine-2-thiones

Shi-Feng Gan, Jie-Ping Wan, Yuan-Jiang Pan, Cui-Rong Sun*
Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. of China
Fax: +86(571)87951629; e-Mail: suncuirong@zju.edu.cn;
Further Information

Publication History

Received 1 December 2009
Publication Date:
02 March 2010 (online)

Abstract

A facile, efficient, and green method for the synthesis of multisubstituted thiazolidine-2-thione derivatives via a three-component reaction of amine, carbon disulfide, and α-bromoketone is described. By using water as the reaction medium, the reaction proceeds smoothly to give corresponding products in good to excellent yields.

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Crystallographic data (excluding structure factors) for the structures in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication number CCDC 747685.

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General Procedure
To a solution of amines 1 (0.75 mmol) in H2O (3 mL), CS2 (1.5 mmol) and α-bromoketone 2 (0.5 mmol) were added. Subsequently, K2CO3 (0.25 mmol) was located to the mixture. After stirring the mixture at r.t. for 1 h, the mixture was extracted with EtOAc (3 × 10 mL), and the combined organic layers were dried overnight with anhyd Na2SO4. After the organic solvent was removed, the residue was subjected to silical gel chromatography PE-EtOAc (5:1) as eluent to give pure products.