Synthesis 2006(3): 435-438  
DOI: 10.1055/s-2006-926295
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Convenient One-Pot Synthesis of Pyrano[3,2-c]quinolin-2,5(6H)-dione and 2H,5H-Pyrano[3,2-c]chromene-2,5-dione Derivatives

Hassan Sheibani*a, Mohammad Hossein Mossleminb, Soheila Behzadib, Mohammad Reza Islamia, Kazem Saidia
a Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, Iran
Fax: +98(341)3221452; e-Mail: hsheibani@mail.uk.ac.ir;
b Department of Chemistry, Islamic Azad University of Yazd, Yazd 89195, Iran
Further Information

Publication History

Received 20 July 2005
Publication Date:
11 January 2006 (online)

Abstract

The preparation of novel pyrano[3,2-c]quinolin-2,5(6H)-dione and 2H,5H-pyrano[3,2-c]chromene-2,5-dione derivatives starting from 4-hydroxyquinolin-2(1H)-ones and 4-hydroxy-2H-chromene-2-one with chlorocarbonyl ketenes is described. This method provides a new route to produce fused pyrano derivatives in good to excellent yields in a short experimental time.