1,2‐Aryl Migration Induced by Amide C−N Bond‐Formation: Reaction of Alkyl Aryl Ketones with Primary Amines Towards α,α‐Diaryl β,γ‐Unsaturated γ‐Lactams
作者:Rong Hu、Yigao Tao、Xiaofeng Zhang、Weiping Su
DOI:10.1002/anie.202014900
日期:2021.4.6
that incorporates an unusual 1,2‐aryl migration induced by amide C−N bond formation to produce a class of structurally novel α,α‐diaryl β,γ‐unsaturated γ‐lactams in generally good‐to‐excellent yields. This cascade reaction has a broad substrate scope with respect to primary amines, allows a wide spectrum of (hetero)aryl groups to smoothly undergo 1,2‐migration, and tolerates electronically diverse
从容易获得的原料中,引入级联反应的重排反应在迅速增加分子复杂性中起重要作用。此处报道的是α-(杂)芳基取代的烷基(杂)芳基酮与伯胺的Cu催化级联反应,该反应结合了酰胺C-N键形成诱导的一类不寻常的1,2-芳基迁移,从而产生了一类结构新颖的α,α-二芳基β,γ-不饱和γ-内酰胺,收率通常良好至优异。该级联反应相对于伯胺具有广泛的底物范围,可以使广泛的(杂)芳基基团平稳地经历1,2-迁移,并且可以耐受酮的(杂)芳基环上的各种电子α-取代基。从机械上讲,这1