Kinetic study of [Ru(SALOPH)Cl2] complex-catalyzed oxidative carbonylation of methylamine to give methylurethane

Halligudi, S. B. ; Bhatt, K. N. ; Taqui Khan, M. M. (1991) Kinetic study of [Ru(SALOPH)Cl2] complex-catalyzed oxidative carbonylation of methylamine to give methylurethane Journal of Molecular Catalysis, 68 (3). pp. 261-267. 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(91)80084-G

Abstract

The oxidative carbonylation of methylamine catalyzed by dichlorobis(salicylaldehyde-o-phenylenediiminatoruthenate(III) at 150°C and CO + O2 (1:0.5) pressure of 21 atm gave methylurethane (80%), dimethylurea (15%) and N-methylformamide (5%) as the reaction products, with a turnover rate of 40 mol products per mole catalyst per hour. The rates of oxidative carbonylation measured at 150°C and in the pressure range 5-21 atm, exhibited a first-order dependence with respect to catalyst, substrate and dissolved CO concentrations, while it was half-order with respect to dissolved O2 concentration. An activation energy of 9.2 kcal mol−1 was estimated from the measurements of rates of oxidative carbonylation of methylamine in the temperature range 150-170°C.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:58498
Deposited On:31 Aug 2011 12:21
Last Modified:31 Aug 2011 12:21

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