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Synthesis, reactivity, and theoretical studies of the eta(2)(4e)-bonded phosphaalkyne complex [CpMo{P(OMe)(3)}(2){eta(2)(4e)-P CBut}][B(C6F5)(4)] and the molybdenum-mediated cyclocotrimerization of alkyne and phosphaalkyne Ligands


Reference:

Burrows, A. D., Carr, N., Green, M., Lynam, J. M., Mahon, M. F., Murray, M., Kiran, B., Nguyen, M. T. and Jones, C., 2002. Synthesis, reactivity, and theoretical studies of the eta(2)(4e)-bonded phosphaalkyne complex [CpMo{P(OMe)(3)}(2){eta(2)(4e)-P CBut}][B(C6F5)(4)] and the molybdenum-mediated cyclocotrimerization of alkyne and phosphaalkyne Ligands. Organometallics, 21 (15), pp. 3076-3078.

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Abstract

Whereas the cations [CpMo{P(OMe)(3)}(2){eta(2)(4e)-alkyne}](+) do not react with alkynes or P=CBut, the newly synthesized isostructural phosphaalkyne complex [CpMo{P(OMe)(3)}(2){eta(2)(4e)-P=CBut}][B(C6F5)(4)], which is unreactive towards PhC2Ph, readily reacts via an associative stepwise process with P=CBut to give [CpMo{P(OMe)(3)}(2){eta(4)-1,3-P2C2Bu2t}][B(C6F5)(4)]. A further interesting difference in alkyne and phosphaalkyne chemistry was observed when it was found that CpMoCl(CO){eta(2)(4e)-PhC2Ph} reacts with TlPF6 and P=CBut to give the unusual 16-electron cyclocotrimerization product [CpMo{=C(Bu-t)PC(Bu-t)=PC(Ph)=C(Ph)}(CO)][PF6], identified by single-crystal X-ray crystallography.

Details

Item Type Articles
CreatorsBurrows, A. D., Carr, N., Green, M., Lynam, J. M., Mahon, M. F., Murray, M., Kiran, B., Nguyen, M. T. and Jones, C.
DOI10.1021/om020169g
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code5153
Additional InformationID number: ISI:000176869300002

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