3,4-Dichloroaniline → HCID 20335438, compound

Participants

Reaction Steps

The mixture of 0.6 g of 1-(3,4-dichlorophenyl)-3-methyl-4-carbethoxy-2-pyrazolin-5-one, 0.31 g of 3,4-dichloroaniline and 40 ml of xylene is distilled for a few minutes, refluxed 20 minutes and distilled again a few minutes. The cooled solution deposits crystals, which are collected, washed with benzene and recrystallized from ethyl acetate to yield the 1-(3,4-dichlorophenyl)-3-methyl-4-(3,4-dichlorophenylcarbamoyl)-2-pyrazolin-5-one, melting at 255°-257° (dec.).

Provenance & Evidence