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Si–N Heterodehydrocoupling with a Lanthanide Compound
Abstract
[La{N(SiMe<sub>3</sub>)<sub>2</sub>}<sub>3</sub>THF<sub>2</sub>] (<b>1</b>) is an effective precatalyst for the heterodehydrocoupling of silanes and amines. Coupling of primary and secondary amines with aryl silanes was achieved with a loading of 0.8 mol % of [La{N(SiMe<sub>3</sub>)<sub>2</sub>}<sub>3</sub>THF<sub>2</sub>]. With primary amines, generation of tertiary and sometimes quaternary silamines was facile, often requiring only a few hours to reach completion, including new silamines Ph<sub>3</sub>Si(<sup><i>n</i></sup>PrNH) and Ph<sub>3</sub>Si(<sup><i>i</i></sup>PrNH). Secondary amines were also available for heterodehydrocoupling, though they generally required longer reaction times and, in some instances, higher reaction temperatures. This work expands upon the utility of <i>f</i>-block complexes in heterodehydrocoupling catalysis- Text
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- La
- PrNH
- Ph
- heterodehydrocoupling catalysis
- Secondary amines
- 3 THF 2
- quaternary silamines
- block complexes
- aryl silanes
- reaction times
- reaction temperatures
- Si