SYNTHESIS OF FURO[3,2-<i>c</i>]COUMARINS UNDER MICROWAVE IRRADIATION USING NANO-CoFe<sub>2</sub>O<sub>4</sub>@SiO<sub>2</sub>–PrNH<sub>2</sub> AS AN EFFICIENT AND MAGNETICALLY REUSABLE CATALYST

Authors

  • Javad Safaei-Ghomi Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box, 51167-87317, Kashan
  • Hossein Shahbazi-Alavi Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box, 51167-87317, Kashan
  • Pouria Babaei Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box, 51167-87317, Kashan
  • Hadi Basharnavaz Department of Physical Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box, 87317-51167, Kashan
  • Stephen G. Pyne School of Chemistry, University of Wollongong, Northfields Ave, Wollongong, NSW 2522
  • Anthony C. Willis Research School of Chemistry, Australian National University, Building 137, Sullivans Creek Road, Acton, ACT 2601

DOI:

https://doi.org/10.1007/3107

Keywords:

CoFe2O4@SiO2–PrNH2, furo[3, 2-c]coumarins, diastereoselectivity, one-pot synthesis, reusable catalysts

Abstract

CoFe2O4@SiO2–PrNH2 nanoparticles have been used as an efficient and magnetically recoverable catalyst for the preparation of trans-3-aryl-2-(4-bromobenzoyl)-2,3-dihydro-4H-furo[3,2-c]chromen-4-ones by multicomponent reaction of 2,4'-dibromoacetophenone, aromatic aldehydes, and 4-hydroxycoumarin in the presence of pyridine in ethanol under microwave irradiation. It was demonstrated by 1H NMR spectroscopy and single crystal analysis that the obtained furo[3,2-c]coumarins were the trans-isomers.

Author Biography

Javad Safaei-Ghomi, Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, P.O. Box, 51167-87317, Kashan

Departmentof Organic Chemistry, Faculty of Chemistry

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Published

2016-06-14

Issue

Vol. 52 No. 5 (2016)

Section

Original Papers