Metal-free α-CH amination of ethers with hypervalent sulfonylimino-λ3-bromane that acts as an active nitrenoid
作者:Masahito Ochiai、Shinichi Yamane、Md. Mahbubul Hoque、Motomichi Saito、Kazunori Miyamoto
DOI:10.1039/c2cc31523h
日期:——
Hypervalent N-triflylimino-lambda(3)-bromane undergoes direct and regioselective alpha-C-H amination of ethers at room temperature under transition metal-free conditions. Kinetic results, substituent and deuterium isotope effects suggest an asynchronous concerted organonitrenoid transition state with some hydride transfer character, analogous to that for alkane C-H insertions.
超价N-triflylimino-lambda(3)-溴在室温下在无过渡金属的条件下进行醚的直接和区域选择性α-CH胺化。动力学结果,取代基和氘的同位素效应表明,与烷烃CH插入相似,具有一些氢化物转移特征的异步协调的有机类异戊二烯过渡态。