Direct Cross-Coupling of Allylic C(sp<sup>3</sup>
)−H Bonds with Aryl- and Vinylbromides by Combined Nickel and Visible-Light Catalysis
作者:Long Huang、Magnus Rueping
DOI:10.1002/anie.201805118
日期:2018.8.6
An efficient protocol for the direct allylic C(sp3)−H bond activation of unactivated tri‐ and tetrasubstituted alkenes and their functionalization with aryl‐ and vinylbromides by nickel and visible‐light photocatalysis has been developed. The method allows C(sp2)−C(sp3) formation under mild reaction conditions with good functional‐group tolerance and excellent regioselectivity.
已经开发了一种有效的协议,用于未活化的三取代和四取代的烯烃的直接烯丙基C(sp 3)-H键活化以及镍和可见光光催化作用将它们用芳基和乙烯基溴官能化。该方法可以在温和的反应条件下形成C(sp 2)-C(sp 3),具有良好的官能团耐受性和极好的区域选择性。