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Catalytic reductive carbonylation of nitrobenzene to methyl N-phenylcarbamate

V. Macho, Š. Morávek, and J. Ilavský

Department of Organic Technology, Faculty of Chemical Technology, Slovak Technical University, CS-812 37 Bratislava


Abstract: A new three-component catalytic system (S and its compounds +CH3COONa+V2O5) can be used for reductive carbonylation of PhNO2 with CO and CH3OH which gives methyl N-phenylcarbamate and aniline. The initial carbon monooxide pressure is equal to 14 MPa at 298 K and the reaction takes place at 360-470 K. Moreover, the influence of components (S or CS2 and V2O5) of the catalytic system as well as of water addition on initial reaction rate and selectivity of the reaction has been examined. The reaction mechanism is discussed. It has been proved that the hydrogen from water molecule is taking part only indirectly in the reaction with PhNO2 to give PhNH2.

Full paper in Portable Document Format: 453a363.pdf


Chemical Papers 45 (3) 363–368 (1991)

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