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Issue 91, 2015
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BF3 bonded nano Fe3O4 (BF3/MNPs): an efficient magnetically recyclable catalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives

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Abstract

A simple and efficient procedure for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives has been developed by a one-pot three-component reaction of various aldehydes with malononitrile and 3-methyl-1-phenyl-2-pyrazoline-5-one in the presence of BF3/MNPs as a novel nanostructured, heterogeneous and reusable catalyst. In this research, BF3/MNPs nanoparticles were prepared at three calcination temperatures and characterized by various techniques. The characterization and optimization results show that the catalyst with a calcination temperature of 450 °C has the best catalytic activity. The nano-sized magnetite catalyst were recovered by simple separation with an external magnet and reused for several cycles without considerable loss of activity.

Graphical abstract: BF3 bonded nano Fe3O4 (BF3/MNPs): an efficient magnetically recyclable catalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives

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Article information


Submitted
14 Jun 2015
Accepted
26 Aug 2015
First published
26 Aug 2015

RSC Adv., 2015,5, 74932-74939
Article type
Paper
Author version available

BF3 bonded nano Fe3O4 (BF3/MNPs): an efficient magnetically recyclable catalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives

M. Abdollahi-Alibeik, A. Moaddeli and K. Masoomi, RSC Adv., 2015, 5, 74932
DOI: 10.1039/C5RA11343A

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