Synthesis 2018; 50(05): 1123-1132
DOI: 10.1055/s-0036-1591873
paper
© Georg Thieme Verlag Stuttgart · New York

Consecutive Multicomponent Reactions: Synthesis of 3-Acyl-4-alkynyl-Substituted 1,3-Thiazolidines

Torben Schlüter
Institut für Chemie (IfC), Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: Juergen.martens@uni-oldenburg.de
,
Nils Frerichs
Institut für Chemie (IfC), Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: Juergen.martens@uni-oldenburg.de
,
Marc Schmidtmann
Institut für Chemie (IfC), Carl von Ossietzky Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany   Email: Juergen.martens@uni-oldenburg.de
,
Jürgen Martens*
Institut für Chemie (IfC), 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: 09 October 2017

Accepted after revision: 30 November 2017

Publication Date:
11 January 2018 (online)


These authors contributed equally to this work.

Abstract

This work describes the synthesis of compounds containing thiazolidine and propargylamidic motifs. Their preparation follows a synthetic route containing two multicomponent reactions. First, the Asinger four-component reaction is used to prepare 3-thiazolines and 3-oxazolines. Secondly, these heterocyclic imines are converted into propargylamides by a copper-catalyzed three-component reaction using acyl chlorides and terminal alkynes. The synthetic route is characterized by mild conditions and many functional groups are tolerated. The formation of an unexpected α-alkynoxyamide is also presented.

Supporting Information