Copper-catalyzed iminohalogenation of γ, δ-unsaturated oxime esters with halide salts: Synthesis of 2-halomethyl pyrrolines
作者:Chen Chen、Jie Ding、Yuebo Wang、Xiaonan Shi、Dequan Jiao、Bolin Zhu
DOI:10.1016/j.tetlet.2019.151000
日期:2019.9
A copper-catalyzed iminohalogenation of unactivated alkenes of γ, δ-unsaturated oxime esters is achieved by using readily available halide salts. Utilizing this protocol, a sequence of structurally diversiform 2-halomethyl pyrrolines are efficiently synthesized and a mechanism involving iminyl radical intermediates, which were initiated by Cu(I) species, was proposed.
γ,δ-不饱和肟酯的未活化烯烃的铜催化亚氨基卤化是通过使用容易获得的卤化物盐实现的。利用该协议,可以有效地合成一系列结构多样的2-卤代甲基吡咯啉,并提出了一种由亚氨基自由基中间体(由Cu(I)物种引发)的机理。