作者:Yun Wu、Hao-Ran Zhang、Yi-Xuan Cao、Quan Lan、Xi-Sheng Wang
DOI:10.1021/acs.orglett.6b02803
日期:2016.11.4
first example of nickel-catalyzed monofluoroalkylation of arylsilanes has been developed with readily available fluoroalkyl halides. This novel transformation has demonstrated high reactivity, broad substrate scope, excellent functional group tolerance, and mild reaction conditions. The selective activation of a relatively inert C–Si bond for slow release of aryl carbanion is the key reason for reducing
用容易获得的氟代烷基卤化物开发了镍催化的芳基硅烷单氟烷基化的第一个例子。这种新颖的转化已显示出高反应活性,广泛的底物范围,出色的官能团耐受性和温和的反应条件。选择性活化相对惰性的C-Si键以缓慢释放芳基碳负离子是减少芳基金属种类数量的关键原因,这使该方法对于复杂生物活性分子的含氟修饰更具前景。机理研究表明,该催化循环涉及游离的氟代烷基。