Volume 45, Issue 4 pp. 1039-1044
Article

Regioselective synthesis of heterocyclic scaffold by aryl radical cyclization

K. C. Majumdar

Corresponding Author

K. C. Majumdar

Department of Chemistry, University of Kalyani, Kalyani 741235, WB, India

Department of Chemistry, University of Kalyani, Kalyani 741235, WB, India. Tel.: +91-33-2582-7521, fax: +91-33-25828282Search for more papers by this author
N. Kundu

N. Kundu

Department of Chemistry, University of Kalyani, Kalyani 741235, WB, India

Search for more papers by this author
First published: 13 March 2009
Citations: 3

Abstract

chemical structure image

Regioselective synthesis of a number of coumarin-annulated pentacyclic heterocycles have been achieved by tri-n-butyltin hydride-mediated aryl radical cyclization. The products are formed as a mixture of cis- and trans- forms which were successfully separated by careful silica gel flash chromatography.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.