A simple, convenient and practical green synthetic protocol for sodium bisulfite catalyzed multicomponent reaction of ethyl acetoacetate, hydrazine hydrate, malononitrile, and various aldehydes for the synthesis of 6-amino-4-phenyl-3-methyl-2,4-ihydropyrano[2,3-c]pyrazole-5-carbonitriles using ultrasound irradiations in solvent free condition. This method provides the advantage of operational simplicity, shorter reaction time and excellent yields making the protocol environment friendly and economically lucrative.
Water-mediated oxalic acid catalysed one-pot synthesis of 2-(substituted phenyl) phthalazin-1(2H)-ones, Journal of Taibah University for Science, 2015, 9, 4, 548
2.
One-pot three-component synthesis of 3-(α-aminobenzyl)-4-hydroxycoumarin derivatives using nanocrystalline TiO2 as reusable catalyst, Russian Journal of Organic Chemistry, 2015, 51, 1, 69
3.
Sonochemistry in non-conventional, green solvents or solvent-free reactions, Tetrahedron, 2017, 73, 6, 609
4.
Magnetically Recyclable Nano-FDP: A Novel, Efficient Nano-Organocatalyst for the One-Pot Multi-Component Synthesis of Pyran Derivatives in Water Under Ultrasound Irradiation, Catalysis Letters, 2015, 145, 9, 1808
5.
Choline chloride based thiourea catalyzed highly efficient, eco-friendly synthesis and anti-bacterial evaluation of some new 6-amino-4-aryl-2,4-dihydro-3-phenyl pyrano [2,3-c] pyrazole-5-carbonitrile derivatives, Research on Chemical Intermediates, 2017, 43, 5, 3035
6.
ZnO Nanoparticles as an Efficient, Heterogeneous, Reusable, and Ecofriendly Catalyst for Four-Component One-Pot Green Synthesis of Pyranopyrazole Derivatives in Water, The Scientific World Journal, 2013, 2013, 1
7.
Nano-ZnO Catalyzed Green and Efficient One-Pot Four-Component Synthesis of Pyranopyrazoles, Journal of Chemistry, 2013, 2013, 1
Efficient sodium bisulfite-catalyzed synthesis of benzothiazoles and their potential as ureases inhibitors, RSC Adv., 2015, 5, 36, 28814
10.
A green and clean pathway: one pot, multicomponent, and visible light assisted synthesis of pyrano[2,3-c]pyrazoles under catalyst-free and solvent-free conditions, New J. Chem., 2017, 41, 19, 11148
11.
Solvent-free and ‘on-water’ multicomponent assembling of aldehydes, 3-methyl-2-pyrazoline-5-one, and malononitrile: fast and efficient approach to medicinally relevant pyrano[2,3-c]pyrazole scaffold, Monatshefte für Chemie - Chemical Monthly, 2015, 146, 4, 631
12.
Sonochemistry: Synthesis of bioactive heterocycles, Review Journal of Chemistry, 2014, 4, 3, 221
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