[E(μ-NBbp)]<sub>2</sub> (E = P, As) – group 15 biradicals synthesized from acyclic precursors
作者:Jonas Bresien、Axel Schulz、Lilian Sophie Szych、Alexander Villinger、Ronald Wustrack
DOI:10.1039/c9dt01654f
日期:——
the type [E(μ-NBbp)]2 (E = P, As) (Bbp = 2,6-bis[bis(trimethylsilyl)methyl]phenyl) was investigated. Contrary to the established synthetic protocol for terphenyl substituted biradicals [E(μ-NTer)]2 by reduction of [ClE(μ-NTer)]2, the analogous Bbp substituted precursor [ClE(μ-NBbp)]2 could only be obtained in low yields. For this reason, a new synthesis had to be found to generate [E(μ-NBbp)]2. Instead
研究了[E(μ-NBbp)] 2(E = P,As)(Bbp = 2,6-双[双(双(三甲基甲硅烷基)甲基]苯基)Bbp稳定的双基团的合成。与通过还原[ClE(μ-NTer)] 2建立的三联苯取代的双自由基[E(μ-NTer)] 2的合成方案相反,只能获得类似的Bbp取代的前体[ClE(μ-NBbp)] 2。产量低。因此,必须找到一种新的合成方法来生成[E(μ-NBbp)] 2。我们不是使用环状的[ClE(μ-NBbp)] 2而是从Bbp–NH 2和ECl 3开始制备了无环的Bbp–N(ECl 2)2物种。并研究了镁屑的还原反应,从而形成了所需的双基[E(μ-NBbp)] 2。沿反应路径的所有物种均已得到充分表征。