3-Chloro-4-methylphenyl isocyanate → HCID 22186081, compound

Participants

Reaction Steps

A mixture of 13.6 mmol (3 g) of 4-methoxy-3-(4-methyl-1-piperazinyl)phenylamine and 13.6 mmol (2.26 g) of 3-chloro-4-methylphenyl isocyanate in 100 ml of toluene is heated at reflux for 2 hours. After cooling, the precipitate obtained is filtered off, and rinsed twice with diethyl ether. The solid obtained is purified by chromatography on silica gel, using as eluant a 96/4/0.4 dichloromethane/methanol/ammonium hydroxide mixture, to yield the expected product. The corresponding hydrochloride is obtained by the action of an ethanolic HCl solution.

Provenance & Evidence