作者:Yangyang Li、Hailiang Pang、Dong Wu、Zheqi Li、Wang Wang、Hong Wei、Ying Fu、Guoyin Yin
DOI:10.1002/anie.201903890
日期:2019.6.24
electronically unbiased alkenes has been developed, providing straightforward access to secondary aliphatic boronic esters from readily available materials under very mild reaction conditions. The regioselectivity of this reaction is governed by a unique pyridyl carboxamide ligated catalyst, rather than the substrates. Moreover, this transformation shows excellent chemo‐ and regio‐selectivity and remarkably
已经开发出前所未有的镍催化的电子无偏烯烃的1,1-烷基硼化,可在非常温和的反应条件下直接从易得的材料中获得仲脂族硼酸酯。该反应的区域选择性由独特的吡啶基羧酰胺连接的催化剂而不是底物决定。此外,这种转化还显示出优异的化学和区域选择性以及出色的功能基团耐受性。我们还证明了在气球压力下,乙烯也可以用作底物。此外,能力实验表明,在硼的α位有利于选择性键的形成,初步的机理研究表明,这种三组分反应的关键步骤涉及1,2-镍的迁移。