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ChemInform Abstract: Highly Efficient Solvent‐Free Synthesis of Pyranopyrazoles by a Broensted‐Acidic Ionic Liquid as a Green and Reusable Catalyst.

Javad Ebrahimi, Ali Mohammadi, Vahid Pakjoo, Ehsan Bahramzade, Amir Habibi

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Abstract

Abstract Biologically active substituted dihydropyrano[2,3‐c]pyrazole derivatives (IV) are obtained by a simple, green, and efficient four‐component reaction of various benzaldehydes (II), ethyl acetoacetate (I), malononitrile (III), and hydrazine hydrate using an acidic ionic liquid as catalyst.

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Abstract Biologically active substituted dihydropyrano[2,3‐c]pyrazole derivatives (IV) are obtained by a simple, green, and efficient four‐component reaction of various benzaldehydes (II), ethyl acetoacetate (I), malononitrile (III), and hydrazine hydrate using an acidic ionic liquid as catalyst.

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Available abstract

Abstract Biologically active substituted dihydropyrano[2,3‐c]pyrazole derivatives (IV) are obtained by a simple, green, and efficient four‐component reaction of various benzaldehydes (II), ethyl acetoacetate (I), malononitrile (III), and hydrazine hydrate using an acidic ionic liquid as catalyst.

Key concepts: Chemistry, Malononitrile, Ethyl acetoacetate, Ionic liquid, Hydrazine (antidepressant), Catalysis, Hydrate, Pyrazole

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ChemInform Abstract: Highly Efficient Solvent‐Free Synthesis of Pyranopyrazoles by a Broensted‐Acidic Ionic Liquid as a Green and Reusable Catalyst. — Research Paper | ScholarLens