Taqui Khan, M. M. ; Halligudi, S. B. ; Sumita Rao, N. (1990) Oxidative carbonylation of cyclohexylamine to cyclohexylurethane catalysed by dichlorobis-(salicylaldehyde)-o-phenylenediiminato ruthenate(III) Journal of Molecular Catalysis, 59 (3). pp. 303-309. ISSN 0304-5102
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0304-5102(90)85103-O
Abstract
The complex [Ru(saloph)Cl2] (saloph = bis(salicylaldehyde-o-phenyl-enediimine) catalyses the oxidative carbonylation of cyclohexylamine in ethanol medium to cyclohexylurethane selectively at 160°C and CO + O2 (1:0.50) pressure of 21 atm. A turnover number of 30 mol per mol catalyst per hour was observed in this reaction. The rate of oxidative carbonylation of cyclohexylamine measured at 160°C in the range 7-21 atm is first order with respect to catalyst, cyclohexylamine and dissolved CO concentrations and one-half order with respect to dissolved O2 concentration. The effect of temperature on the rate of oxidative carbonylation was studied in the temperature range 150-170°C and the activation energy evaluated as 21.0 kcal mol−.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 58512 |
| Deposited On: | 31 Aug 2011 12:19 |
| Last Modified: | 31 Aug 2011 12:19 |
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