Synthesis of dihydropyrano[2,3-c]pyrazole scaffolds by methylene blue (MB+) as a photo-redox catalyst via a single-electron transfer (SET)/energy transfer (EnT) pathway

Synthesis of dihydropyrano[2,3-c]pyrazole scaffolds by methylene blue (MB+) as a photo-redox catalyst via a single-electron transfer (SET)/energy transfer (EnT) pathway

A new environmentally friendly plan was created to make dihydropyrano [2,3-c]pyrazole structures without using metals. This plan involves combining ethyl acetoacetate, hydrazine hydrate, aldehyde derivatives, and malononitrile in a radical tandem Knoevenagel-Michael cyclocondensation reaction. We us...

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Bibliographic Details
Main Authors: Farzaneh Mohamadpour, Hesam Kamyab, Shreeshivadasan Chelliapan, Ali Mohammad Amani
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Current Research in Green and Sustainable Chemistry
Subjects:
Methylene blue (MB+)
Photo-redox catalyst
Photochemical synthesis
Dihydropyrano[2,3-c]pyrazole scaffolds
Renewable energy source
Aqueous solvent
Online Access:http://www.sciencedirect.com/science/article/pii/S2666086523000279

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http://www.sciencedirect.com/science/article/pii/S2666086523000279

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