Synthesis 2014; 46(13): 1807-1814
DOI: 10.1055/s-0033-1341027
paper
© Georg Thieme Verlag Stuttgart · New York

Molecular Iodine Mediated Regioselective Synthesis of Pyranocoumarins and Bis-Fused Benzo-2H-pyran Derivatives

K. C. Majumdar*
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
Biswajit Sinha
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
Inul Ansary
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
Sintu Ganai
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
Debankan Ghosh
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
B. Roy
a   Department of Chemistry, University of Kalyani, Kalyani 741235, W. B., India   Email: kcm@klyuniv.ac.in   Email: kcm_ku@yahoo.co.in
,
B. Sridhar
b   Laboratory of X-ray crystallography, IICT Hyderabad, Hyderabad 500007, India
› Author Affiliations
Further Information

Publication History

Received: 08 January 2014

Accepted after revision: 25 February 2014

Publication Date:
07 April 2014 (online)


Abstract

A simple and straightforward approach for the regioselective synthesis of pyranocoumarin and bis-fused benzo-2H-pyran derivatives using mild, easy to handle, and cheaper molecular iodine mediated heterocyclization is described.

Supporting Information