One-Pot Synthesis of 4-Hydroxy-3-phenyl-2H-pyrano[3,2-b]benzofuran-2-one Derivatives

Abstract

Novel 4-hydroxy-3-phenyl-2H-pyrano[3,2-b]benzofuran-2-ones (15a–d), were synthesized in a one-step procedure by the reaction of substituted benzofuran-3-ones 12a–d and (chlorocarbonyl)phenyl ketene.

Keywords:

• Benzofuran-2-ones
• (chlorocarbonyl)phenyl ketene
• 2-pyrone

ACKNOWLEDGMENTS

This work was financially supported by grants from Research Council of Tehran University of Medical Sciences and INSF (Iran National Science Foundation).