γ-Functionalizations of Amines through Visible-Light-Mediated, Redox-Neutral C−C Bond Cleavage
作者:Wei Shu、Alexandre Genoux、Zhaodong Li、Cristina Nevado
DOI:10.1002/anie.201704068
日期:2017.8.21
Cleavage of unstrained C−C bonds under mild, redox-neutral conditions represents a challenging endeavor which is accomplished here in the context of a flexible, visible-light-mediated, γ-functionalization of amines. In situ generated C-centered radicals are harvested in the presence of Michael acceptors, thiols and alkyl halides to efficiently form new C(sp3)−C(sp3), C(sp3)−H and C(sp3)−Br bonds, respectively
在温和的,氧化还原中性条件下裂解未断裂的C-C键是一项艰巨的工作,可在胺的柔性,可见光介导的γ-官能化的背景下完成。在迈克尔受体,硫醇和烷基卤化物的存在下收集原位产生的以C为中心的自由基,以有效地形成新的C(sp 3)-C(sp 3),C(sp 3)-H和C(sp 3)-溴键。