Mild and efficient synthesis of 3-acyl-5-hydroxybenzofurans via bismuth chloride-catalyzed cycloaddition of unactivated 1, 4-benzoquinones with 1, 3-dicarbonyl …

A Thirupathaiah, G Venkateshwar Rao…

Index: Thirupathaiah; Venkateshwar Rao; Ramanna Oriental Journal of Chemistry, 2010 , vol. 26, # 4 p. 1521 - 1524

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Abstract

ABSTRACT A method to prepare a variety of substituted 3-acyl-5-hydroxybenzofurans efficiently that relies on bismuth chloride-catalyzed cycloaddition of unactivated 1, 4- benzoquinones with 1, 3-dicarbonyl compounds is reported. The reaction was shown to be

~65%

~97%

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