Synthesis 2004(10): 1633-1640  
DOI: 10.1055/s-2004-829112
PAPER
© Georg Thieme Verlag Stuttgart · New York

2-Aminothiabutadiene as Useful Building Block in the Synthesis of 2-Aminothiopyrans and 2-Aminothiophenes

Aélig Robin, Jean-Claude Meslin, David Deniaud*
Laboratoire de Synthèse Organique, UMR CNRS 6513, Faculté des Sciences et des Techniques, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
Fax: +33(2)51125402; e-Mail: david.deniaud@chimie.univ-nantes.fr;
Further Information

Publication History

Received 7 April 2004
Publication Date:
23 June 2004 (online)

Abstract

We report a reliable and regiocontrolled alternative route to unsubstituted 2-aminothiopyrans and 2-aminothiophenes. These sulfur heterocycles were prepared by reaction of protected aminothiabutadiene 1 with acrylic dienophiles or acceptor-substituted halomethyl compounds. All compounds were fully characterized by IR, HRMS, and 13C and 1H NMR spectroscopy.