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A New Facile Ultrasound-Assisted Magnetic Nano-[CoFe2O4]-Catalyzed One-Pot Synthesis of Pyrano[2,3-c]pyrazoles


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Abstract

Pyrano[2,3-c]pyrazole derivatives have been synthesized through a one-pot multicomponent condensation of various aldehydes, dialdehydes, and ketones with malononitrile, ethyl acetoacetate, hydrazine hydrate (or phenylhydrazine) in the presence of magnetic nano-[CoFe2O4] catalyst under ultrasonic irradiation. The catalyst can be recovered using an external magnet and used repeatedly.

About the authors

M. Mishra

Department of Chemistry

Email: aatika.nizam@christuniversity.in
India, Bengaluru, 560029

A. Nizam

Department of Chemistry

Author for correspondence.
Email: aatika.nizam@christuniversity.in
India, Bengaluru, 560029

K. J. Jomon

Department of Chemistry

Email: aatika.nizam@christuniversity.in
India, Bengaluru, 560029

K. Tadaparthi

Department of Chemistry

Email: aatika.nizam@christuniversity.in
India, Bengaluru, 560029

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