p-Toluenesulfonyl chloride (TsCl)/NaOH has been introduced as reagent combination for the synthesis of 2-amino-oxa- or 2-amino-thiazolidines from N-(2-hydroxyethyl)-thioureas, but its general application in heterocycle synthesis has not been investigated. In this paper the convenient and efficient synthesis of a variety of 2-amino-substituted 1-aza 3-(aza, oxo or thio) heterocycles of different substitution and ring sizes is described. The application of polymer-supported TsCl facilitates work-up and renders the reaction conditions very suitable for parallel or robot synthesis. (C) 2004 Elsevier Ltd. All rights reserved.
Dousse, G.; Lavayssiere, H.; Satge, J., Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1989, vol. 19, p. 49 - 74
作者:Dousse, G.、Lavayssiere, H.、Satge, J.
DOI:——
日期:——
1014. 2-Amino-2-imidazolines and 2-amino-2-oxazolines