The Use of MnCoFe2O4@GT@Cu Magnetic Nanoparticles in the Synthesis of Benzopyrans

Abstract

Multi-component reactions (MCRs) are useful and powerful tools for the reduction of environmental pollution and the elimination of problematic intermediate steps in the synthesis of organic compounds. They have the advantages of short reaction times, little forma-tion of by-products, high yield, and atom economy. MCR reactions have attracted much attention for the synthesis of heterocyclic compounds, including benzopyrans. 1 – 4 The latter have long been known for their important biological properties, 5 including anti-HIV, 6 general anti-microbial, 7 and anti-fungal 8 properties. Several research investigations have been reported for the synthesis of benzopyrans in the presence of catalysts, and of these we may particularly note Fe 3 O 4 @ MCM-41 @ Zr-piperazine magnetite nanocatalyst, 9 sodium polyas-partate-functionalized silica-coated magnetic nanoparticles (MNPs-SPAsp), 10 [ c -Fe 2 O 3 @ HAp-Si (CH 2 ) 3 BF 4 @ DMIM] MNPs, 11 ZIF @ ZnTiO 3 nanocomposite, 12 and SiO 2 / H 3 PW 12 O 40 . 13 The design and use of green catalysts for the synthesis of benzopyrans con-tinues to be a current topic of wide interest in synthetic organic chemistry. Spinel are 14 15 16 17 19

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DOI

10.1080/00304948.2022.2085985

Journal

Organic Preparations and Procedures International

Year

2022