作者:Di Wang、Xiao‐Song Xue、Kendall N. Houk、Zhuangzhi Shi
DOI:10.1002/anie.201811036
日期:2018.12.17
The Brown hydroboration reaction, first reported in 1957, is the addition of B−H across an olefin in an anti‐Markovnikov fashion. Here, we solved a long‐standing problem on mild 1,3‐hydroborations of non‐activated cyclopropanes. A three‐component system including cyclopropanes, boron halides, and hydrosilanes has been developed for borylative ring‐opening of cyclopropanes following the anti‐Markovnikov
布朗硼氢化反应最早于1957年报道,是以反马尔科夫尼科夫的方式在烯烃上加成B-H。在这里,我们解决了长期存在的非活化环丙烷轻度1,3-硼氢化反应问题。已经开发了一种三环体系,包括环丙烷,卤化硼和氢硅烷,用于在温和的反应条件下按照反马尔可夫尼科夫规则对环丙烷进行硼烷基化开环。密度泛函理论(M06-2X)计算表明,优选途径涉及阳离子硼中间体,该中间体通过从硅烷中转移氢化物而被淬灭。