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BIBTEX RIS

Thermal Activation of Hydrocarbon C−H Bonds by Cp*M(NO) Complexes of Molybdenum and Tungsten

2003; American Chemical Society; Volume: 36; Issue: 4 Linguagem: Inglês

10.1021/ar0202215

ISSN

1520-4898

Autores

C.B. Pamplin, Peter Legzdins,

Tópico(s)

Carbon dioxide utilization in catalysis

Resumo

Gentle thermolysis of appropriate Cp*M(NO)(hydrocarbyl)2 complexes (Cp* = η5-C5Me5) of molybdenum and tungsten results in loss of hydrocarbon and the transient formation of 16-electron Cp*M(NO)-containing complexes such as Cp*M(NO)(alkylidene), Cp*M(NO)(η2-benzyne), Cp*M(NO)(η2-acetylene), and Cp*M(NO)(η2-allene) (M = Mo, W). These intermediates effect the single, double, or triple activation of hydrocarbon C−H bonds intermolecularly, the first step of these activations being the reverse of the transformations by which they were generated. This Account summarizes the various types of C−H activations that have been effected with these nitrosyl complexes and also describes the results of kinetic, mechanistic, and theoretical investigations of these processes.

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