A Flexible one-pot synthesis of pyrazolopyridines catalyzed by Fe3O4@SiO2-SO3H nanocatalyst under microwave irradiation

Authors

Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 87317-51167, Iran.

Abstract

Fe3O4@SiO2-SO3H nanocatalyst has been used as an ecient catalyst for the preparation of pyrazolopyridines by a multi-component reaction of ethyl acetoacetate, aldehyde, hydrazine hydrate, and ammonium acetate under microwave irradiation. Atom economy, wide range of products, excellent yields in short times, use of microwave as green method, reusability of the catalyst, and little catalyst loading are some of the important features of this protocol.

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Main Subjects


Volume 24, Issue 3
Transactions on Chemistry and Chemical Engineering (C)
May and June 2017
Pages 1209-1219
  • Receive Date: 17 June 2016
  • Revise Date: 23 September 2016
  • Accept Date: 25 February 2017