Wadkar, J. G. ; Chaudhari, R. V. (1983) Homogeneous catalytic hydrogenation of allyl alcohol using RhCl(PPh3)3 catalyst: a kinetic study Journal of Molecular Catalysis, 22 (1). pp. 103-116. ISSN 0304-5102
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/030451...
Related URL: http://dx.doi.org/10.1016/0304-5102(83)80092-3
Abstract
The kinetics of the hydrogenation of allyl alcohol using the homogeneous catalyst RhCl(PPh3)3 have been studied. The effect of catalyst concentration, H2 partial pressure, allyl alcohol concentration and temperature on the initial rates have been investigated, and a rate expression developed. The activation energy of the reaction was found to be 19.7 kcal mol-1. A plot of the rate of reaction versus allyl alcohol concentration yielded a maximum, indicating substrate inhibition at higher concentrations. A mechanism for this observed substrate inhibition is discussed. Under certain conditions, the catalyst RhCl(PPh3)3 was found to be deactivated. The deactivated species was isolated and characterized as RhCl(CO)(PPh3)2 by IR and elemental analyses. The mechanism of deactivation, apparently carbonyl abstraction, is also discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 7779 |
| Deposited On: | 25 Oct 2010 10:28 |
| Last Modified: | 30 May 2011 05:24 |
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