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X-ray and multinuclear NMR study of the mixed aggregate [(Ph2P(O)N(CH2Ph)CH3) · LiOC6H2-2,6-{C(CH3)3}2-4-CH3) · C7H8]2: a model for the directed metalation of phosphinamides


Reference:

Fernandez, I., Price, R. D., Bolton, P. D., Mahon, M. F., Davidson, M. G. and Lopez-Ortiz, F., 2004. X-ray and multinuclear NMR study of the mixed aggregate [(Ph2P(O)N(CH2Ph)CH3) · LiOC6H2-2,6-{C(CH3)3}2-4-CH3) · C7H8]2: a model for the directed metalation of phosphinamides. Journal of Organometallic Chemistry, 689 (11), pp. 1890-1896.

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http://dx.doi.org/10.1016/j.jorganchem.2004.03.013

Abstract

The addition of LiBun to a toluene solution of PhP(O)N(CH2Ph)CH3 1 and 2,6-di-tert-butyl-4-methylphenol 5 leads to the formation of the mixed dimer [(Ph2P(O)N(CH2Ph)CH3)(LiOC6H2)-Li-.-2.6-{C(CH3)(3)}(2)-4-(CH3C7H8)-C-.]( 2) 6. The single crystal X-ray structure shows that two lithium aryloxide moieties dimerize giving rise to a Li2O2 core in which each lithium atom is additionally coordinated to a phosphinamide 1 ligand. The multinuclear magnetic resonance study (H-1, Li-7, C-13, P-31) indicates that the solid-state structure is preserved in toluene solution. Complex 6 may be considered as a model for the pre-complexation step preceding the metalation of phosphinamides by an organolithium base.

Details

Item Type Articles
CreatorsFernandez, I., Price, R. D., Bolton, P. D., Mahon, M. F., Davidson, M. G. and Lopez-Ortiz, F.
DOI10.1016/j.jorganchem.2004.03.013
DepartmentsFaculty of Science > Pharmacy & Pharmacology
Faculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code4918
Additional InformationID number: ISI:000221529500005

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