3,4-Dichloroaniline → 2,3-Dichloro-N-[(3,4-dichlorophenyl)carbamoyl]propanamide

Participants

Reaction Conditions

Reaction Steps

A solution of 17.0 g (0.1 mole) of 2,3-dichloropropionyl isocyanate in 50 ml of wash benzine was added dropwise to a solution of 16.0 g (0.1 mole) of 3,4-dichloroaniline in 150 ml of dry benzene at 0° to 5° C, while cooling. In the course thereof, the reaction product crystallized out. The mixture was stirred for a further hour at 20° C and was filtered, and the product was washed with petroleum ether and dried. 25 g of N-(3,4-dichlorophenyl)-N'-(2,3-dichloropropionyl)-urea of melting point 145° to 148° C, with decomposition, were obtained. The yield was 76% of theory.

Provenance & Evidence