Synthesis of 3,4-dihydropyrano[c]chromenes using carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin as a catalyst

Yogesh W. More, Sunil U. Tekale, Nitishkumar S. Kaminwar, László Kótai, T. Pasinszki, Pravin S. Kendrekar, Rajendra P. Pawar

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2 Citations (Scopus)

Abstract

Aim and Objective: The present study was performed with the aim to develop an efficient and environmentally benign protocol for the synthesis of biologically siginifcant 3, 4-dihydropyrano[c]chromenes using a new catalytic material. The protocol involves the use of a reusable, environment friendly materials and solvents with operational simplicity. Materials and Methods: Carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin were synthesized, characterized with well versed analytical techniques such as XRD, SEM and Raman spectroscopy and the synthesized material was used as a catalyst for the environmentally benign synthesis of 3,4-dihydropyrano[c]chromenes. Results: The formation of carbon microsphere supported copper nanoparticles (Cu-NP/C) prepared from loaded cation exchange resin was confirmed by XRD, SEM and Raman spectroscopy which was employed as a heterogeneous material for the synthesis of 3,4-dihydropyrano[c]chromenes. The products formed were characterized by the analysis of spectroscopic data - NMR, IR and mass. The safe catalytic system offers several advantages including operational simplicity, environmental friendliness, high yield, and reusability of catalyst and green chemical transformation. Conclusion: Herein we report an easy and efficient protocol for the one-pot synthesis of dihydropyrano[ c]chromenes using environmentally benign MCR approach in ethanol as the green solvent. The method developed herein constitutes a valuable addition to the existing methods for the synthesis of titled compounds.

Original languageEnglish
Pages (from-to)288-293
Number of pages6
JournalCurrent Organic Synthesis
Volume16
Issue number2
DOIs
Publication statusPublished - Jan 1 2019

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Keywords

  • Catalyst
  • Cu-NP/C
  • Dihydropyrano[c]chromenes
  • Green solvent
  • Multicomponent reaction
  • One-pot synthesis

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry

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