Journal of Chemistry / 2016 / Article / Tab 1

Research Article

Synthesis of Carboxylic Acid by 2-Hexenal Oxidation Using Gold Catalysts Supported on MnO2

Table 1

Effect of support on 2-hexenal oxidation.

CatalystConversion%Selectivity%
Dimer2-Hexenoic acid

Graphite0.7093.1
Au/G74.54.086.0
TiO20.9096.5
Au/TiO268.22.988.4
MgO1.1089.3
Au/MgO54.06.285.9
SiC0.7092.1
Au/SiC69.34.182.8
MnO20.8095.6
Au/MnO281.38.389.1
CeO21.2090.5
Au/CeO272.84.384.6
Al2O30.4089.0
Au/Al2O365.44.884.2

Reaction conditions: 4.23 g of 2-hexenal, 0.06 g of catalyst, 50°C, 24 h, atmospheric pressure.
Dimer: 4,6-dipropyl-3,4,5,6-tetrahydropyran-2-one-5-carboxaldehyde.

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