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B(C6F5)3‑Catalyzed C–Si/Si–H Cross-Metathesis of Hydrosilanes
journal contribution
posted on 2017-08-24, 00:00 authored by Yuanhong Ma, Liang Zhang, Yong Luo, Masayoshi Nishiura, Zhaomin HouThe substituent redistribution
of hydrosilanes on silicon through
C–Si and Si–H bond cleavage and reformation is of great
interest and importance, but this transformation is usually difficult
to achieve in a selective fashion. By using electron-rich aromatic
hydrosilanes, we have achieved for the first time the selective C–Si/Si–H
bond homo- and cross-metathesis of a series of hydrosilanes in the
presence of a boron catalyst B(C6F5)3. This protocol features simple reaction conditions, high chemoselectivity,
wide substrate scope, and high functionality tolerance, offering a
new pathway for the synthesis of multisubstituted functional silanes.