Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse cedex 9, France.
Université de Toulouse, UPS, ICT-FR2599, 118 route de Narbonne, 31062, Toulouse cedex 9, France.
Angew Chem Int Ed Engl. 2017 Jan 24;56(5):1365-1370. doi: 10.1002/anie.201610455. Epub 2016 Dec 22.
An N,P-heterocyclic germylene/B(C F ) Lewis adduct 2 presenting multi-reactive sites (P/B Lewis pair, germylene, Ge=P π-bond) is reported. In contrast to classical frustrated Lewis pairs or divalent Group 14 element species, 2 is able to activate two small molecules simultaneously. Of particular interest, 2 reacts with silanes leading to the formation of original cationic germylenes 3, and can be used as a metal-free catalyst for selective CO -hydrosilylation to H C(OSiEt ) .
报道了一种具有多反应活性位点(P/B 路易斯对、甲锗烷、Ge=Pπ-键)的 N,P-杂环甲锗烷/B(C 6 F 5 ) 3路易斯加合物 2。与经典的受阻路易斯对或二价第 14 族元素物种不同,2 能够同时激活两个小分子。特别有趣的是,2 与硅烷反应生成原始的阳离子甲锗烷 3,并且可以用作无金属催化剂用于选择性 CO-硅氢化反应生成 H C(OSiEt 3 ) 3 。