Hydrogenation of 4-nitroacetophenone over Rh/silica: understanding selective hydrogenation of multifunctional molecules

Currall, K. and Jackson, S. (2014) Hydrogenation of 4-nitroacetophenone over Rh/silica: understanding selective hydrogenation of multifunctional molecules. Topics in Catalysis, 57(17-20), pp. 1519-1525. (doi: 10.1007/s11244-014-0327-z)

Abstract

The hydrogenation of 4-nitroacetophenone (4-NAP) and 4-aminoacetophenone (4-AAP) was examined over a rhodium/silica catalyst at 333 K and 4 barg. High selectivities and yields (94 %) to 4-aminoacetophenone and 1-(4-aminophenyl)ethanol could be obtained from 4-NAP hydrogenation but high selectivity to 1-(4-aminophenyl)ethanol could not be obtained from direct 4-AAP hydrogenation. Addition of 4-methylcyclohexylamine modified the strength of adsorption and hence increased the rate of hydrogenation of both 4-NAP and 4-AAP and enhanced selectivity.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Currall, Mrs Kathryn and Jackson, Professor David
• Authors: Currall, K., and Jackson, S.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Topics in Catalysis
• Publisher: Springer US
• ISSN: 1022-5528
• ISSN (Online): 1572-9028