Quan-Qing Zhao, Xiao-Qiang Hu, Meng-Nan Yang, Jia-Rong Chen and Wen-Jing Xiao
Chem. Commun., 2016,52, 12749-12752
DOI:
10.1039/C6CC05897C,
Communication
An efficient visible light photocatalytic and external oxidant-free N-radical 5-exo cyclization/addition/aromatization cascade of β,γ-unsaturated hydrazones is described, which provides a practical route to various biologically interesting dihydropyrazole-fused benzosultams in satisfactory yields.