Alkylation of SH??heterocycles with diethyl phosphite using tetrachloroethylene as an efficient solvent

…, RG Ren, YX Da, Z Zhang, XC Wang

Index: Quan, Zheng-Jun; Ren, Rong-Guo; Da, Yu-Xia; Zhang, Zhang; Wang, Xi-Cun Heteroatom Chemistry, 2011 , vol. 22, # 5 p. 653 - 658

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Citation Number: 3

Abstract

Abstract Treatment of mercapto-heterocyclic compounds with diethyl phosphite in the presence of 4-dimethylaminopyridine (DMAP) in tetrachloroethylene has given the S- ethylated product in good yields and high chemoselectivity. This procedure is compatible with a wide range of SH-compounds such as 1, 3, 4-oxadiazole-2-thiol, 1, 3, 4-thiadiazole-2- thiol, benzo [d] thiazole-2-thiol, and substituted benzenethiol.© 2011 Wiley Periodicals, Inc ...