Oxidative addition of methyl iodide to [Rh(CH3COCHCOCH3)(CO)(P(OCH2)3CCH3)] |
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Authors: | JJC Erasmus |
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Institution: | Department of Chemistry, University of the Free State, Bloemfontein 9301, South Africa |
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Abstract: | The reaction rate of the oxidative addition and the following CO insertion step of methyl iodide with Rh(acac)(CO)(P(OCH2)3CCH3)] is determined. The key finding is that while Rh(acac)(CO)(P(OCH2)3CCH3)] oxidatively adds methyl iodide ca 300 times faster than the Monsanto catalyst, the CO insertion step is much slower. However, the rate-determining step of the oxidative addition reaction of the phosphorus-containing acetylacetonato-rhodium(I) complex, the carbonyl insertion step, is still in the same order or faster than the rate-determining oxidative addition step of iodomethane to Rh(CO)2I2]−. |
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Keywords: | Acetylacetone Rhodium Oxidative addition Phosphite DFT |
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