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Synfacts 2009(6): 0598-0598  
DOI: 10.1055/s-0029-1216705
Synthesis of Heterocycles
© Georg Thieme Verlag Stuttgart ˙ New York

Electrophilic Heteroannulation Strategy for the Synthesis of 2-Chalcogenbenzofurans

Contributor(s): Victor Snieckus, Johnathan Board
F. Manarin, J. A. Roehrs, R. Mozzaquatro Gay, R. Brandão, P. H. Menezes, C. W. Nogueira, G. Zeni*
Universidade Federal de Santa Maria and Universidade Federal de Pernambuco, Recife, Brazil
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Publication History

Publication Date:
25 May 2009 (online)

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Significance

Reported is a heteroannulation strategy to benzofurans from 2-chalcogenalky­nylanisoles triggered by electrophilic reaction with either iodine, iodine chloride, bromine or phenyl-selenyl bromide. Although the proposed mechanism for the reaction is entirely reasonable if not highly likely, no evidence was provided to support it.