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8555747 
Journal Article 
Selective oxidation of toluene to benzaldehyde using Cu/Sn/Br catalyst system 
Rajurkar, K; Kulkarni, N; Rane, V; Shrivastava, R 
2011 
0 
International Journal of Chemical Sciences
ISSN: 0972-768X 
9 
2 
545-552 
English 
Liquid phase oxidation of toluene to benzaldehyde using a bimetallic catalyst consisting salts of copper, stannous; and sodium bromide as a promoter in acetic acid medium in the presence of air as oxidant has been investigated. The effect of different reaction parameters like temperature, pressure, substrate concentration, catalyst concentration on the toluene conversion and selectivity to benzaldehyde, benzyl alcohol and benzoic acid were studied. The catalytic activity and selectivity was found to be strongly influenced by the temperature and catalyst concentration. Br was found to be an essential component to initiate the oxidation reaction. High selectivity to benzaldehyde (50-65%) with good conversion was achieved using Cu/Sn/Br catalyst system. 
Benzaldehyde selectivity; Catalyst; Cu/SnCl2/NaBr; Liquid phase oxidation of toluene; Toluene conversion