Synthesis 2008(18): 2871-2873  
DOI: 10.1055/s-2008-1067238
SHORTPAPER
© Georg Thieme Verlag Stuttgart ˙ New York

A Quick and Advantageous Synthesis of 2H-1-Benzopyran-2-ones Unsubstituted on the Pyranic Nucleus

George Bratulescu*
Faculty of Chemistry, University of Craiova, 13 A.I. Cuza, 200396 Craiova, Romania
e-Mail: georgebratulescu@yahoo.com;
Further Information

Publication History

Received 5 October 2007
Publication Date:
22 August 2008 (online)

Abstract

The synthesis of 2H-1-benzopyran-2-ones (coumarins) unsubstituted on the pyranic nucleus was realized by condensation of malic acid and phenols under mild conditions. A short reaction time, improved yields, good purity of the products, and an easy clean experimental protocol are the advantages of this procedure.