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BIBTEX RIS

Thiophene and Butadiene−Thiolate Complexes of Molybdenum: Observations Relevant to the Mechanism of Hydrodesulfurization

2002; American Chemical Society; Volume: 124; Issue: 16 Linguagem: Inglês

10.1021/ja012771o

ISSN

1943-2984

Autores

K.E. Janak, Joseph M. Tanski, David G. Churchill, Gerard Parkin,

Tópico(s)

Organometallic Complex Synthesis and Catalysis

Resumo

Mo(PMe3)6 reacts with thiophene to give the eta5-thiophene complex (eta5-C4H4S)Mo(PMe3)3 and the eta5-butadiene-thiolate complex (eta5-C4H5S)Mo(PMe3)2(eta2-CH2PMe2), which are the first examples of (i) eta5-thiophene coordination and (ii) C-S cleavage and hydrogenation by a molybdenum compound. Deuterium labeling studies suggest that the hydrogenation of thiophene may involve an alkylidene intermediate, an observation that has ramifications for the mechanisms of hydrodesulfurization.

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