FeO@nano-cellulose/Cu(ii): a Bio-based and Magnetically Recoverable Nano-catalyst for the Synthesis of 4-pyrimido[2,1-]benzothiazole Derivatives

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 May 6

PMID 35518002

Authors

Nasrin Safajoo

Bi Bi Fatemah Mirjalili

Abdolhamid Bamoniri

Affiliations

Soon will be listed here.

Abstract

FeO@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst was prepared through co-precipitation of Fe and Fe ions in an aqueous suspension of nano-cellulose. The mentioned magnetically heterogeneous catalyst was characterized by FT-IR, XRD, VSM, FESEM, TEM, XRF, EDS and TGA. In this research, the synthesis of 4-pyrimido[2,1-]benzothiazole derivatives was developed a three component reaction of aromatic aldehyde, 2-aminobenzothiazole and ethyl acetoacetate using FeO@nano-cellulose/Cu(ii) under solvent-free condition at 80 °C. Some advantages of this protocol are good yields, environmentally benign, easy work-up and moderate reusability of the catalyst. The product structures were confirmed by FT-IR, H NMR, and C NMR spectra.

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