Regioselective synthesis of 1H,3H,6H[2]benzopyrano[4,3-d]pyrimidine-2,4-diones and 12H-benzopyrano[3,2-c][1]benzopyran-5-ones by radical cyclization

Authors: Majumdar, K.C.; Basu, P.K.; Mukhopadhyay, P.P.; Sarkar, S.; Ghosh, S.K.; Biswas, P.

Source: Tetrahedron, Volume 59, Number 12, 17 March 2003 , pp. 2151-2157(7)

Publisher: Elsevier

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Keywords: 2-bromobenzyl bromide; azobisisobutyronitrile; radical cyclization; sodium cyanoborohydride; tri-n-butyltin chloride

Document Type: Research Article


Affiliations: Department of Chemistry, University of Kalyani, 741 235, West Bengal, Kalyani, India

Publication date: March 17, 2003

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