Amidinato silylene complexes for bond activation and catalysis

This thesis primarily describes the development of amidinato silylene complexes for the purposes of bond activation and catalysis. Firstly, a paramagnetic dimeric amidinato cobaltosilylene was demonstrated to catalyze the regioselective C–H functionalization of arylpyridines by alkynes. It can also...

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Bibliographic Details
Main Author: Khoo, Sabrina Yee Teng
Other Authors: So Cheuk Wai
Format: Thesis
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/103657
http://hdl.handle.net/10220/47433
Description
Summary:This thesis primarily describes the development of amidinato silylene complexes for the purposes of bond activation and catalysis. Firstly, a paramagnetic dimeric amidinato cobaltosilylene was demonstrated to catalyze the regioselective C–H functionalization of arylpyridines by alkynes. It can also catalyze Kumada-type cross-coupling reactions. Next, an amidinato silicon(I)–iron(II) dimer was shown to be active in the catalytic hydroboration of carbonyl compounds in the absence of auxiliary reducing agents. A silylene boronium cation then exhibited reversible aliphatic C–H bond activation, the first of its kind. Lastly, an amidinato amidosilylene performed the challenging B–H activation.