A Novel Recyclable Bi-Mg-O Composite Nano-Catalyst Promoted Rapid and Efficient Synthesis of Spirooxindole and 4H-Pyran Derivatives

Abhijeet Mulik, Vishvanath Ghanwat, Pravin Hegade, Mukund Mali, D. Y. Kim, Dae Sung Lee, Asif Shahzad, Surendra Shinde, Mohan Rajmane

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A novel Bi-Mg-O composite nano-catalyst was prepared by using Bi(NO3)3 and nano-MgO. Prepared catalyst was characterized using x-ray diffraction (XRD) analysis, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) technique which confirms its nano-crystalline nature and composition. The synthesized novel catalyst Bi-Mg-O was found to be competent catalyst for the synthesis of spirooxindole derivatives by multicomponent reaction of isatin, dimedone, malononitrile and 4H-pyran derivatives by reaction of dimedone, aryl aldehydes and malononitrile using ethanol as solvent at room temperature. The nanocatalyst proved to be recyclable as it is recycled and recovered for three runs without notable loss in catalytic activity. All synthesized derivatives were obtained in exemplary yields. Novel recyclable nanocatalyst, good yields of products, and benign reaction conditions are the noteworthy aspects of the present protocol.

Original languageEnglish
Pages (from-to)6665-6678
Number of pages14
JournalPolycyclic Aromatic Compounds
Volume43
Issue number7
DOIs
StatePublished - 2023

Keywords

  • Bi-Mg-O
  • different derivatives
  • Nano-catalyst
  • recyclability
  • SEM
  • XPS
  • XRD

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