Ring Expansion Reaction of Heterocyclic Cation Compounds by Incorporating One Nitrogen Atom Using I<sub>2</sub>–NH<sub>3</sub>System
作者:Katsumi Yonemoto、Isao Shibuya
DOI:10.1246/cl.1989.89
日期:1989.1
The reaction of various heterocyclic cation compounds with I2/NH4OH resulted in ringexpansion on nitrogen atom. The similar ringexpansion reaction occurred on the corresponding triiodides with NH4OH. The reaction mechanism based on initial nucleophilic attack of NH3 on cations, subsequent oxidative iodination, and liberation of I− is proposed.