4-Chlorotoluene → 4-Chlorobenzaldehyde

Participants

Reaction Conditions

Reaction Steps

To carry out the oxidation, 20 g of the catalyst is mixed with 20 g of broken quartz glass of the same screening fraction and this mixture is placed in a quartz glass tube having an inner diameter of 1.5 cm. For thermostating, the reactor is immersed in a fluidized sand bath which is heated externally. The starting material gas comprising 1% by volume of 4-chlorotoluene and 99% by volume of air is passed through the heated reactor at a total volumetric flow rate of 2.5 ml/s (STP) and the product is collected in a trap cooled to -70° C. Carbon monoxide and carbon dioxide are quantitatively determined by gas chromatography. The unreacted 4-chlorotoluene collected in the cold trap and the 4-chlorobenzaldehyde formed are taken up in acetonitrile and analyzed by HPLC. The results of the reaction are given in Table 1.

Provenance & Evidence