Access to B═S and B═Se Double Bonds via Sulfur and Selenium Insertion into a B−H Bond and Hydrogen Migration
摘要:
Stable compounds with a boron-chalcogen (S or Se) valence double bond have been prepared via sequences involving insertion of the chalcogen into a B-H bond and subsequent hydrogen migration. X-ray diffraction studies and density functional theory calculations on the resulting compounds provide convincing evidence for the boron-chalcogen multiple bonding.
Access to B═S and B═Se Double Bonds via Sulfur and Selenium Insertion into a B−H Bond and Hydrogen Migration
摘要:
Stable compounds with a boron-chalcogen (S or Se) valence double bond have been prepared via sequences involving insertion of the chalcogen into a B-H bond and subsequent hydrogen migration. X-ray diffraction studies and density functional theory calculations on the resulting compounds provide convincing evidence for the boron-chalcogen multiple bonding.
Zwitterionic Hydroboranes Stabilized by <i>β</i>
-Diimine Framework
作者:Jianfeng Li、Hongfan Hu、Chunming Cui
DOI:10.1002/cjoc.201600776
日期:2017.6
Reaction of the N‐heterocyclic borane [MeCCHC(CH2)(NAr)2]BH (1, Ar = 2,6‐Me2C6H3) with B(C6F5)3 afforded the zwitterionichydroborane [MeCCHC(CH2)B(C6F5)3(NAr)2]BH, in which the β‐methyl group can be deprotonated with LiN(SiMe3)2 to yield an anionic zwitterionic borenium.