1,2-Dichloro-4-nitrobenzene → 3,4-Dichloroaniline

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Reaction Steps

22.1 g of 3,4-dichloro-nitrobenzene and 70 g of toluene are placed in an agitator autoclave, and the catalyst suspension is flushed in with 4 g of water. Hydrogenation subsequently takes place at a temperature of 100° C. and at a hydrogen pressure of 5 bar. When the hydrogen up-take is complete, the autoclave is cooled and rendered inert with nitrogen. The catalyst is filtered off and washed with toluene. After working up by distillation, 18.0 g of 3,4-dichloroaniline (yield 96.8% of theory) are obtained.

Provenance & Evidence