4-Chlorobenzohydrazide → HCID 59536829, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 12.95 g (75.9 mmol) of 4-chlorobenzhydrazide in 50 ml of dry THF was initially charged at 50° C., and a solution of 10.0 g (77.5 mmol) of ethyl 2-isocyanatoacetate in 100 ml of dry THF was added dropwise. Initially, a solution was formed, and then a precipitate. After the addition had ended, the mixture was stirred at 50° C. for a further 2 h and then allowed to stand overnight. The crystals were isolated by filtration, washed with a little diethyl ether and dried under HV. This gave 21.43 g (89% of theory) of the title compound.

Provenance & Evidence