Le Nhat Thuy Giang, Dang Thi Tuyet Anh, Nguyen Ha Thanh, Hoang Thi Phuong, Nguyen Tuan Anh, Nguyen Thi Quynh Giang, Vu Thi Thu Ha, Nguyen Van Tuyen

Main Article Content

Abstract

The green and efficient approach for synthesis of 2-hydroxy-3-(arylmethyl)(4-hydroxy-2-oxo-2,5-dihydrofuran-3-yl)-1,4-naphthoquinones starting from 2-hydroxy-1,4-naphthoquinone, tetronic acid, and aromatic aldehydes was developed. These reactions were carried out in ethanol under microwave irradiation in the presence of ammonium acetate as catalyst. These multicomponent domino reactions presumably occur via NH4OAc-catalyzed Mannich reaction - Michael addition - hydration - tautomerism - elimination sequence of reactions.

Keywords: 1,4-Naphthoquinones, furan-fused compounds, ammonium acetate, multicomponent domino reactions.

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