Crumpled perovskite-type LaMoxFe1-xO3 nanosheets: A reusable catalyst for rapid and green synthesis of naphthopyranopyrimidine derivatives

In this study, crumpled nanosheets of molybdenum-doped LaFeO3 (LaMo0.1Fe0.9O3) were prepared by the citric acid based sol-gel route. Characterization of the prepared LaMo0.1Fe0.9O3 was carried out by Fourier transform infrared spectra (FT-IR), powder X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy (FE-SEM). The catalytic performance of LaMo0.1Fe0.9O3 nanostructures was evaluated in the green synthesis of naphthopyranopyrimidines from one-pot three-component reaction of 2-naphthol, different substituted aromatic aldehydes, barbituric acid and its derivatives under solvent-free conditions. This method provides several advantages such as mild conditions, operational simplicity, high yields, safety, easy workup and simple purification of products, little catalyst loading, and reusability of the catalyst. (C) 2019 Elsevier Ltd. All rights reserved.