作者:Tao Jia、Qiong He、Rebecca E. Ruscoe、Alexander P. Pulis、David J. Procter
DOI:10.1002/anie.201806169
日期:2018.8.27
Copper catalyzed multi‐functionalization of unsaturated carbon‐carbon bonds is a powerful tool for the generation of complex molecules. We report a regiodivergent process that allows a switch between 1,4‐borocupration and 4,1‐borocupration of 1,3‐dienes upon a simple change in ligand. The subsequently generated allyl coppers are trapped in an electrophilic cyanation to selectively generate densely
铜催化不饱和碳碳键的多功能化是生成复杂分子的强大工具。我们报告了一种区域发散过程,该过程允许在配体的简单变化下在1,4-二烯的1,4-硼铜化和4,1-硼铜化之间进行切换。随后生成的烯丙基铜被困在亲电子氰化反应中,以选择性地生成高密度官能化且合成用途广泛的1,2-或4,3-硼氰化产物。