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Synthesis and isomerisation of two metallated N,O-complexes of ruthenium: Models for the Murai reaction


Reference:

Jazzar, R. F. R., Varrone, M., Burrows, A. D., Macgregor, S. A., Mahon, M. F. and Whittlesey, M. K., 2006. Synthesis and isomerisation of two metallated N,O-complexes of ruthenium: Models for the Murai reaction. Inorganica Chimica Acta, 359 (3), pp. 815-820.

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Abstract

Two isomers of the N,O-coordinated acetylpyrrolyl complex [Ru(PPh3)(2)(Co)(NC4H3C(O)CH3)H] {cis-NH (1) and trans-NH (2) have been prepared as models for catalytic intermediates in the Murai reaction. Complex 2 isomerises to I upon heating via a dissociative pathway (Delta H++ = 195 +/- 41 kJ mol(-1); Delta S++ = 232 +/- 62 J mol(-1) K-1); the mechanism of this process has been modeled using density functional calculations. Complex 2 displays moderate catalytic activity for the Murai coupling of 2'-methylacetophenone with trimethylvinylsilane, but 1 proved to be catalytically inactive under the same conditions. (c) 2005 Elsevier B.V. All rights reserved.

Details

Item Type Articles
CreatorsJazzar, R. F. R., Varrone, M., Burrows, A. D., Macgregor, S. A., Mahon, M. F. and Whittlesey, M. K.
DOI10.1016/j.ica.2005.05.021
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code1843

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