Metal carbonyl chemistry. Part VII. The reaction of ligands with phenylpentacarbonylmanganese
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 920-929
- https://doi.org/10.1039/j19690000920
Abstract
The preparation of phenyl- and benzoyl-manganese carbonyl complexes from the reactions of the ligands 1-ethyl-4-phospha-3,5,8-trioxabicyclo[2,2,2]octane, P(OCH2)3CEt, triphenylphosphine, or triphenyl phosphite with phenylpentacarbonylmanganese are described. The phosphite ligands lead to the formation of mono-, di-, and tri-substituted compounds of the type PhCOMn(CO)4L, PhMn(CO)4L, PhCOMn(CO)3L2, PhMn(CO)3L2, [where L = P(OPh)3 or P(OCH2)3CEt], and PhCOMn(CO)2[P(OCH2)3CEt]3 depending on the reaction conditions employed. The reaction with triphenylphosphine gives cis-PhMn(CO)4PPh3, although some evidence was obtained for the intermediate formation of the unstable compound PhCOMn(CO)4PPh3. The stereochemistry of these compounds is discussed on the basis of their dipole moments, and infrared and 1H n.m.r. spectroscopic measurements.Keywords
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