Reaction of 2-thiazolidinethione with halohydrocarbon: synthesis of novel N-alkylated 2-thiazolidinethione and S-alkylated thiazoline derivatives
作者:Yufa Liu、Junwei Liu、Xiuming Liu
DOI:10.1515/hc.2010.015
日期:2010.1.1
Reaction of 2-thiazolidinethione with halohydrocarbon in ethanol gave a series of N-alkylated 2-thiazolidinethione and S-alkylated thiazoline derivatives in excellent yields. The reaction was carried out under mild conditions using NaOH as a base and it did not require protection from air.
Thiazolinium salts and their reactions with nucleophiles
作者:A. D. Clark、P. Sykes
DOI:10.1039/j39710000103
日期:——
2,3-Dialkyl- and 3-alkyl-2-aryl-2-thiazolinium salts were prepared by quaternisation of the corresponding 2-thiazolines. Some 3-alkyl-2-alkylthio-2-thiazolinium salts were obtained by quaternisation of 2-alkylthio-2-thiazolines; the products included bicyclic salts obtained from αω-dibromides and 2-thiazoline-2-thiol. In some cases attempted quaternisation yielded only the 3-alkylthiazolidine-2-thiones
2-Substituted thiazokines (IIa-d) were prepared from 2-thiothiazokidone. IIa-d were converted to 2-(ethoxycarbonylcyanomethylene) thiazolidine (III) and its N-acetate and N-methyl derivative. Thiolester analogs of III were obtained by the reaction of IIa-d and cyanoacetic acid in acetic anhydride.