Photoinduced Tandem Cyclization of Unsaturated Aldehyde Hydrazones with N ‐Amidopyridinium Salts to Access Amidated Pyrazolones

Advanced Synthesis & Catalysis 2026

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Authors: Yanzhao Zeng, Qi Yan, Xinping Ding, Lijun Li, Zhong‐Quan Liu, Zejiang Li
DOI: 10.1002/adsc.70349
Cited by: 4
References: 41

Abstract

Photopromoted amidation annulation of aldehyde hydrazones with N ‐amidopyridinium salts was completed, which efficiently produced diverse aryl, heterocycle, and alkyl‐featured amidated pyrazolones with good selectivity/substrate scope. Meanwhile, various applied studies (scaled‐up operations and active molecular derivatization transformations) and mechanistic exploration (fluorescence quenching experiments/radical capturation/light‐on–off operations) were performed to test the merits and reaction process of this cascade system.

Fields of Study & Subjects

Radical Photochemical Reactions Catalytic C–H Functionalization Methods Catalytic Cross-Coupling Reactions

Publication details

Journal / source
Advanced Synthesis & Catalysis
Publisher
Wiley
Volume
368
Issue
6
Publication date
16 March 2026
Language
EN