Synthesis of 5-Oxo-2,5-Dihydro-3-Furancarboxylates Using Nano-CuO

Abstract

Nano-CuO has been used as an efficient catalyst for the preparation of 5-oxo-2,5-dihydro-3-furancarboxylates by multi-component reactions of phenylglyoxal, dimethyl acetylenedicarboxylate and primary amines. The best results were obtained in the presence of 2 mol% of nano-CuO in CH₂Cl₂ at room temperature. The structures of the products were deduced from their ¹H NMR, ¹³C NMR, FT-IR, and elemental analyses. Experimental simplicity, wide range of products, excellent yields in short reaction times, reusability of the catalyst and low catalyst loading are some of the substantial features of this method.

Keywords:

• Phenylglyoxal
• one-pot
• furancarboxylate
• nanocatalyst

Disclosure statement

No potential conflict of interest was reported by the authors.