Radical synthesis of dihydropyranopyrazoles using acridine yellow G as a photo‐induced electron transfer photocatalyst

• Published in: Journal of heterocyclic chemistry Vol. 60; no. 3; pp. 504 - 512
• Main Author: Mohamadpour, Farzaneh
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.03.2023
• Subjects: Aldehydes; Aqueous solutions; Electron transfer; Hydrazines; Malononitrile; Photocatalysts; Pyrazole; Scaffolds; Synthesis

We developed a green method for the synthesis of dihydropyrano[2,3‐c]pyrazole scaffolds using Knoevenagel‐Michael tandem cyclocondensation of ethyl acetoacetate, hydrazine hydrate, aldehydes, and malononitrile. Acridine yellow G (AYG) was used as a photo‐induced electron transfer (photo‐induced elec...