Synthesis 2014; 46(12): 1603-1612
DOI: 10.1055/s-0033-1341043
paper
© Georg Thieme Verlag Stuttgart · New York

Two Sequential Multicomponent Reactions: Synthesis of Thiazolidin-4-yl-1,3,4-oxadiazoles under Mild Conditions

Fabian Brockmeyer
Institut für Chemie, Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: juergen.martens@uni-oldenburg.de
,
David van Gerven
Institut für Chemie, Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: juergen.martens@uni-oldenburg.de
,
Wolfgang Saak
Institut für Chemie, Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: juergen.martens@uni-oldenburg.de
,
Jürgen Martens*
Institut für Chemie, Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: juergen.martens@uni-oldenburg.de
› Author Affiliations
Further Information

Publication History

Received: 29 January 2013

Accepted after revision: 26 February 2014

Publication Date:
26 March 2014 (online)


Abstract

This work describes the synthesis of compounds including both thiazolidine and 1,3,4-oxadiazole heterocyclic systems. The preparation is realized following a new synthesis route consisting of two multicomponent reactions. First 3-thiazolines are formed by an Asinger four-component reaction. Conversion of these cyclic imines into α-amino-1,3,4-oxadiazoles is subsequently achieved by a three-component reaction involving (isocyanoimino)triphenyl­phosphorane and a carboxylic acid. The synthesis route is characterized by mild reaction conditions and it tolerates many functional groups. As shown by the conversion into urea derivatives the prepared α-amino-1,3,4-oxadiazoles are marked by their potential in subsequent reactions.

Supporting Information