Synthesis 2008(17): 2739-2742  
DOI: 10.1055/s-2008-1067210
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Three-Component Coupling of Aldehydes, Homoallyl Alcohols, and Trimethylsilyl Azide: A Facile Synthesis of 4-Azidotetrahydropyrans via the Prins Cyclization

Jhillu S. Yadav*, Basi V. Subba Reddy, Tapas Maity, Gunda G. K. S. Narayana Kumar
Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India
Fax: +91(40)27160512; e-Mail: yadavpub@iict.res.in;
Further Information

Publication History

Received 25 April 2008
Publication Date:
06 August 2008 (online)

Abstract

The coupling of aldehydes, homoallylic alcohols, and trimethylsilyl azide has been achieved in the presence of phosphomo­lybdic acid (PMA) in dichloromethane to produce 4-azido- ­tetrahydropyran derivatives in high yields with all cis selectivity. The use of a heteropoly acid makes this procedure simple, convenient, and cost effective.