3,4-Dichlorophenyl isocyanate → HCID 21414095, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 19 g of 3,4-dichlorophenyl isocyanate in 150 ml of ethyl ether was added to a solution of 14.4 g of N-methyl-N-chloromethylsulfonyl-amine in 150 ml of ethyl ether and after the addition of 0.1 ml of triethylamine, the mixture was stirred for a hour at 20° C. The crystals formed were recovered by vacuum filtration, were washed, dried and dissolved in chloroform. The insolubles were removed by filtration and the filtrate was concentrated to dryness. The product was crystallized from methyl ethyl ketone to obtain 21.3 g of N-methyl-N-chloromethylsulfonyl-N'-(3,4-dichlorophenyl)-urea melting at 119° C.

Provenance & Evidence