2-(5-Acetyl-7-methoxy-2-(4-methoxyphenyl)benzofuran-3-yl)acetic Acid

Abstract

We elaborated a convenient one-step approach for the synthesis of previously unknown 2-(5-acetyl-7-methoxy-2-(4-methoxyphenyl)benzofuran-3-yl)acetic acid. The suggested protocol includes the multicomponent reaction of acetovanillone, 4-methoxyphenylglyoxal and Meldrum’s acid. We have demonstrated that the considered reaction is a one-pot telescoped process including the preliminary condensation of the components in MeCN followed by acid-catalyzed cyclization. The structure of the synthesized product was confirmed by 1H, 13C-NMR spectroscopy and high-resolution mass-spectrometry.

Keywords

• acetovanillone
• arylglyoxal
• meldrum’s acid
• multicomponent reaction