β-Cyclodextrin nanosponge polymer: a basic and eco-friendly heterogeneous catalyst for the one-pot four-component synthesis of pyranopyrazole derivatives under solvent-free conditions

β-Cyclodextrin nanosponge polymer: a basic and eco-friendly heterogeneous catalyst for the one-pot four-component synthesis of pyranopyrazole derivatives under solvent-free conditions

β-Cyclodextrin-epichlorohydrin nanosponge polymer, β-CD/EP, was prepared from the stepwise polymerization of β-cyclodextrin with epichlorohydrin under basic conditions and characterized by FT-IR spectroscopy, thermogravimetric analysis, scanning electron microscopy and Brunauer–Emmett–Teller. An eff...

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Bibliographic Details
Published in:Reaction kinetics, mechanisms and catalysis Vol. 124; no. 2; pp. 767 - 778
Main Authors: Jafari Nasab, Mina, Kiasat, Ali Reza, Zarasvandi, Raziyeh
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-08-2018
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
β-Cyclodextrin-epichlorohydrin nanosponge polymer
Pyranopyrazole derivatives
Multicomponent reactions
Spiro[indoline-3,4′-pyrano[2,3-c]pyrazole
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Summary:β-Cyclodextrin-epichlorohydrin nanosponge polymer, β-CD/EP, was prepared from the stepwise polymerization of β-cyclodextrin with epichlorohydrin under basic conditions and characterized by FT-IR spectroscopy, thermogravimetric analysis, scanning electron microscopy and Brunauer–Emmett–Teller. An efficient synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] and pyranopyrazole derivatives is described using β-CD/EP as a stationary micro-vessel and basic heterogeneous catalyst via a four component reaction under solvent-free conditions.
ISSN:1878-5190
1878-5204
DOI:10.1007/s11144-018-1373-5