Luecke Marcel-Philip, Pens Elron, Yao Shenglai, Driess Matthias
Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany.
Chemistry. 2020 Apr 6;26(20):4500-4504. doi: 10.1002/chem.202000235. Epub 2020 Mar 11.
The reaction of bis(silylenyl)-substituted ferrocene 1 with two molar equivalents of BPh yields the corresponding bis(silylene-borane) Lewis adduct 2. The latter is capable to activate CO to furnish the borane-stabilized bis(silanone) 3 through mono-oxygenation of the dative Si →B silicon centers under release of CO. Removal of BPh from 3 with PMe affords the corresponding 1,3,2,4-cyclodisiloxane and the Me P-BPh adduct. All isolated new compounds were characterized and their molecular structures were determined by single-crystal X-ray diffraction analyses.
双（硅烯基）取代的二茂铁1与两摩尔当量的BPh反应生成相应的双（硅烯-硼烷）路易斯加合物2。后者能够活化CO，通过给电子的Si→B硅中心的单氧化作用在释放CO的情况下提供硼烷稳定的双（硅酮）3。用PMe从3中除去BPh得到相应的1,3,2,4-环二硅氧烷和MeP-BPh加合物。所有分离出的新化合物均经过表征，并通过单晶X射线衍射分析确定了它们的分子结构。
