Ammonia → HCID 14370875, compound

Participants

Reaction Steps

An ammonia gas was introduced while strongly stirring on cooling in an ice bath into a benzene solution (120 ml) of 2,4-dichloro-5-methoxycarbonyloxyphenyl isocyanate (5.04 g, 19.2 mmol) which has been synthesized by the identical method as the Comparative Examples 1 to 4 from 2,4-dichloro-5-methoxycarbonyloxynitrobenzene. Thirty minutes later, a white solid deposited was filtered and sufficiently washed with benzene. This product was confirmed to be the desired 2,4-dichloro-5-methoxycarbonyloxyphenyl urea (4.68 g, yield 88%) by means of spectral analyses.

Provenance & Evidence