Li Haokun, Xu Gan, Li Shuchang, Wu Yuhao, Lu Zhenpin
Department of Chemistry, City University of Hong Kong, Hong Kong SAR, 999077, P. R. China.
Chem Rec. 2023 Dec;23(12):e202300238. doi: 10.1002/tcr.202300238. Epub 2023 Sep 12.
Electron-precise B-B bonded compounds are valuable reagents in organic syntheses, which can be used as key starting material for the synthesis of functionalized organoboranes. Bis(pinacolato)diborane(4) B pin and its derivatives are among the most studied diboron species. However, their B-B bonds usually need to be activated by transition metal catalysts or bases for further transformations. Recently, many well-designed/reactive electron-precise B-B bonded compounds have been developed, which could facilitate direct reactions with small molecules, unsaturated substrates, and electrophiles. This review highlights the synthesis, structure, and reactivity of neutral and anionic B-B bonded compounds.
电子精确的B-B键合化合物是有机合成中有价值的试剂，可作为合成功能化有机硼烷的关键起始原料。双（频哪醇合）二硼烷（4）（Bpin）及其衍生物是研究最多的二硼物种之一。然而，它们的B-B键通常需要通过过渡金属催化剂或碱来活化以便进一步转化。最近，已经开发出许多精心设计的/具有反应活性的电子精确B-B键合化合物，它们可以促进与小分子、不饱和底物和亲电试剂的直接反应。本文综述重点介绍了中性和阴离子型B-B键合化合物的合成、结构和反应活性。
