Title of article
One-pot, Multi-component Synthesis of Dihydropyrano(2,3-c)pyrazoles Catalysed by Preheated Fly-Ash in Aqueous Medium
Author/Authors
Pandey ، A. K. Department of Chemistry - University of Allahabad , Mishra ، K. Department of Chemistry - CMP Degree College - Prayagraj (A constituent PG college of Unversity of Allahabad, Prayagraj) , Shrivastava ، S. C. Department of Chemistry - University of Allahabad , Shukla ، P. Department of Chemistry - University of Allahabad , Tripathi ، A. K.S. Saket P.G. College - A Government-Aided PG college of DR RML Avadh University
From page
129
To page
136
Abstract
A facile one-pot multicomponent protocol for the synthesis of bio-active dihydropyrano(2,3-c)pyrazole derivatives from ethyl acetoacetate, hydrazine hydrate, malononitrile and aryl aldehydes using preheated-fly-ash as catalyst for the first time.These environmentally begin multicomponent cyclocondensations offer some interesting advantages, advantages of this methodology are the use of nontoxic solvent, cost-effective and easy availability of catalyst, ease of the work-up, high yields (up to 95%), and green protocol.
Keywords
pyrazole , green protocol , multi component , Preheated Fly , Ash , Antimicrobial , model reaction
Journal title
Journal of Sciences Islamic Republic of Iran
Journal title
Journal of Sciences Islamic Republic of Iran
Record number
2771393
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