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An Efficient One Pot Four-Component Synthesis of Spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] Derivatives via Electrochemical Approach
Corresponding Author(s) : Abhishek Upadhyay
drabhishek.au@gmail.com
Asian Journal of Chemistry,
Vol. 33 No. 7 (2021): Vol 33 Issue 7, 2021
Abstract
An efficient, simple and one pot, synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] derivative by electrochemically induced condensation of β-keto ester, hydrazine hydrate, malononitrile or ethyl cyanoacetate and isatin in an undivided cell at constant current where sodium bromide was present as electrolyte in ethanol medium.
Keywords
Multicomponent reaction
Electrolysis
Isatin
β-keto ester
Spiro[indoline-3,4′-pyrano[2,3-c]pyrazole]
Upadhyay, A., & Singh, R. (2021). An Efficient One Pot Four-Component Synthesis of Spiro[indoline-3,4′-pyrano[2,3-c]pyrazole] Derivatives via Electrochemical Approach. Asian Journal of Chemistry, 33(7), 1685–1691. https://doi.org/10.14233/ajchem.2021.23196
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