@article{ZhangLiuWangetal.2022, author = {Zhang, Chonghe and Liu, Xiaocui and Wang, Junyi and Ye, Qing}, title = {A Three-Dimensional Inorganic Analogue of 9,10-Diazido-9,10-Diboraanthracene: A Lewis Superacidic Azido Borane with Reactivity and Stability}, series = {Angewandte Chemie}, volume = {61}, journal = {Angewandte Chemie}, number = {36}, doi = {10.1002/anie.202205506}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-318322}, year = {2022}, abstract = {Herein, we report the facile synthesis of a three-dimensional (3D) inorganic analogue of 9,10-diazido-9,10-dihydrodiboraantracene, which turned out to be a monomer in both the solid and solution state, and thermally stable up to 230 °C, representing a rare example of azido borane with boosted Lewis acidity and stability in one. Apart from the classical acid-base and Staudinger reactions, E-H bond activation (E=B, Si, Ge) was investigated. While the reaction with B-H (9-borabicyclo[3.3.1]nonane) led directly to the 1,1-addition on N\(_{α}\) upon N\(_{2}\) elimination, the Si-H (Et\(_{3}\)SiH, PhMe\(_{2}\)SiH) activation proceeded stepwise via 1,2-addition, with the key intermediates 5\(_{int}\) and 6\(_{int}\) being isolated and characterized. In contrast, the cooperative Ge-H was reversible and stayed at the 1,2-addition step.}, language = {en} }