β-Nitroacrylates and Phenols as Key Precursors of Arenofuran-3-carboxylates

Abstract

Herein we report a new, practical and efficient preparation of benzofuran-3-carboxylates and naphthofuran-3-carboxylates starting from β-nitroacrylates and phenols. The reaction is promoted by indium trichloride and leads to the target compounds in good to very good yields under microwave irradiation.

Key words

β-nitroacrylates - arenofurans - heterocycles - cyclization - indium(III) chloride

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