Journal of Chemistry / 2016 / Article / Tab 4

Research Article

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

Table 4

Effect of reaction time on the selectivity during the oxidation of 2-hexenal using 1% Au/MnO2.

Reaction timeSelectivity%
Dimer2-Hexenoic acid

2 h3.595.2
4 h4.494.1
8 h4.894.0
16 h5.392.3
24 h8.389.1

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

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