作者:Zheng Yang、Tao Cao、Yulin Han、Weilong Lin、Qi Liu、Yang Tang、Yizhan Zhai、Minqiang Jia、Wanli Zhang、Tonghao Zhu、Shengming Ma
DOI:10.1002/cjoc.201700416
日期:2017.8
An efficient synthesis of (E)‐alken‐1,2,3‐triboronates form readily available propargylic carbonates is described. The reaction enjoys excellent regio‐ and E‐selectivity and many synthetically useful functional groups can be tolerated. Based on mechanistic studies, a two‐step mechanism via 1,2‐allenyl boronate intermediate is proposed.
描述了一种由易得的炔丙基碳酸酯有效合成(E)-烯烃,1,2,3-三硼酸酯的方法。该反应具有出色的区域和E选择性,并且可以耐受许多合成有用的官能团。基于机理研究,提出了通过1,2-烯基硼酸酯中间体的两步机理。