1,2-dihydrobenzo[e][1,2,4]triazine is a important class of heterocycles,which exists widely in natural products.Many compounds containing those motifs exhibit potent biological activities and medicinal significance.Herein we developed a highly efficient I2 promoted domino protocol for the diverse synthesis of highly substituted 1,2-dihydrobenzo[e][1,2,4]triazines from simple and readily available aryl methyl ketones and N'-(2-aminophenyl)benzohydrazides.In our reaction,three mechanism-different reactions(iodination,[1] Kornblum oxidation,[2...
