Nickel-Catalyzed Hydrosilylation of Terminal Alkenes with Primary Silanes via Electrophilic Silicon–Hydrogen Bond Activation
作者:Xiaoyu Wu、Guangni Ding、Wenkui Lu、Liqun Yang、Jingyang Wang、Yuxuan Zhang、Xiaomin Xie、Zhaoguo Zhang
DOI:10.1021/acs.orglett.1c00111
日期:2021.2.19
NiCl2·6H2O/tBuOK, for the electrophilically activated hydrosilylation of terminal alkenes with primary silanes. This protocol provides excellent performance under mild reaction conditions: exclusive anti-Markovnikov selectivity, broad functional group tolerance (36 examples), and good scalability (TON = 5500). However, the secondary and tertiary silanes are not suitable. Mechanistic studies revealed that
我们报告了一种简单有效的镍基催化体系NiCl 2 ·6H 2 O / t BuOK,用于末端烯烃与伯硅烷的亲电子活化氢化硅烷化。该方案在温和的反应条件下具有出色的性能:独特的抗马尔科夫尼科夫选择性,宽泛的官能团耐受性(36个示例)和良好的可扩展性(TON = 5500)。但是,仲和叔硅烷是不合适的。机理研究表明,这种均相催化的硅氢加成反应包括一种亲电子活化的Si-H键过程,而不会产生氢化镍。