Nickel-Catalyzed Defluorinative Reductive Cross-Coupling of <i>gem</i>-Difluoroalkenes with Unactivated Secondary and Tertiary Alkyl Halides
作者:Xi Lu、Yan Wang、Ben Zhang、Jing-Jing Pi、Xiao-Xu Wang、Tian-Jun Gong、Bin Xiao、Yao Fu
DOI:10.1021/jacs.7b06469
日期:2017.9.13
Herein, we described a nickel-catalyzed monofluoroalkenylation through defluorinative reductive cross-coupling of gem-difluoroalkenes with alkyl halides. Key to the success of this strategy is the combination of C-F cleavage with alkyl halides activation. This reaction enables the convenient synthesis of a large variety of functionalized monofluoroalkenes under mild reaction conditions with broad functional
在此,我们描述了通过嵴二氟烯烃与烷基卤化物的脱氟还原交叉偶联实现的镍催化的单氟烯基化反应。该策略成功的关键是将 CF 裂解与烷基卤化物活化相结合。该反应能够在温和的反应条件下方便地合成多种官能化的单氟烯烃,具有广泛的官能团兼容性和优异的 Z 选择性。Ni 催化与 (Bpin)2/K3PO4 作为末端还原剂的结合促进了 C(sp2)-C(sp3) 的有效形成,尤其是具有高化学选择性的全碳四元中心的生成。