An Intramolecular Silylene Borane Capable of Facile Activation of Small Molecules, Including Metal‐Free Dehydrogenation of Water

• Published in: Angewandte Chemie Vol. 129; no. 13; pp. 3753 - 3756
• Main Authors: Mo, Zhenbo, Szilvási, Tibor, Zhou, Yu‐Peng, Yao, Shenglai, Driess, Matthias
• Format: Journal Article
• Language: English; German
• Published: Weinheim Wiley Subscription Services, Inc 20.03.2017
• Subjects: Activation; Benzene; Boranes; Boron; Carbon dioxide; Chemical synthesis; Chemistry; Dehydrierungen; Dehydrogenation; Diwasserstoff-Aktivierung; Exposure; Frustrierte Lewis-Paare; Hydrogenation; Molecular orbitals; N-heterocyclische Silylene; Nitrous oxide; Silanes; Silanone; Silicon; Spacers

The first single‐component N‐heterocyclic silylene borane 1 (LSi‐R‐BMes2; L=PhC(NtBu)2; R=1,12‐xanthendiyl spacer; Mes=2,4,6‐Me3C6H2), acting as a frustrated Lewis pair (FLP) in small‐molecule activation, can be synthesized in 65 % yields. Its HOMO is largely localized at the silicon(II) atom and th...