作者:Kaito Kuroki、Tatsuyoshi Ito、Jun Takaya
DOI:10.1002/anie.202312980
日期:2023.11.27
Unprecedented formation of borabicyclo[3.2.0]heptadiene derivatives was achieved via reversible boron-insertion into aromatic C−C bonds in the photo-promoted skeletal rearrangement reaction of ambiphilic phosphine-boranes. The reaction mechanism was clarified to consist of sequential two electrocyclic reactions with E/Z-isomerization of an alkene moiety through a highly strained trans-borepin intermediate
在两亲性膦-硼烷的光促进骨架重排反应中,通过可逆地将硼插入芳香族CC键中,实现了硼双环[3.2.0]庚二烯衍生物的前所未有的形成。反应机理被阐明为由连续的两个电环反应组成,其中烯烃部分通过高张力的反式-borepin中间体进行E / Z异构化。