link

https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/slct.20...

Abtahi, B. and Tavakol, H., 2020. Conversion of β‐Nitrostyrenes to Naphthofurans via a Cascade Reaction with α‐and β‐Naphthols. ChemistrySelect, 5, 12582-12585.

Dr. Bahareh Abtahi, Prof. Hossein Tavakol

Abstract

A safe and straightforward method has been developed for the synthesis of various naphthofurans derivatives from readily available α,β-unsaturated nitroalkenes and naphthols in ChCl/ZnCl2 DES media via a cascade reaction. The employed methodology is solvent-free, and ChCl/ZnCl2 DES is applied with the reaction media and catalyst dual roles. Via this reaction, 13 different naphthofuran derivatives, starting from both α- ad β-naphthols have been prepared at 60 °C in 4 h with 86–94 % yields.