A facile one-pot ultrasound assisted for an efficient synthesis of benzo[g] chromenes using Fe3O4/polyethylene glycol (PEG) core/shell nanoparticles

摘要

In this research, a general synthetic method for the synthesis of benzo[g]chromenes has been developed using Fe3O4/polyethylene glycol (PEG) core/shell nanoparticle under ultrasonic irradiations. Compared to the conventional methods, ultrasound procedure showed several advantages including mild reaction conditions, high yield products, short reaction times, reusability of the catalyst and little catalyst loading. (C) 2016 Elsevier B.V. All rights reserved.