HCID 13127534, compound → HCID 13127589, compound

Participants

Reaction Steps

A stirred mixture of 4-cyano-5-di(phenoxycarbonyl)amino-1-(2,3,4-trichlorophenyl)pyrazole (30 g) in methanol (600 ml) was heated at reflux for 80 hours. After cooling the reaction mixture was evaporated and the residue was suspended in dichloromethane (250 ml). The insoluble material was filtered off to give 4-cyano-5-methoxycarbonylamino-1-(2,3,4-trichlorophenyl)pyrazole (11.5 g), m.p. 205°-207° C., in the form of a colourless solid.

Provenance & Evidence