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5.26 g (0.02 mole) of(2-methyl 1-phenyloxy 2-hydroxy propyl)-cyclohexylamine is dissolved in 300 ml of benzene. 2.38 g (0.02 mole) of phenylisocyanate were added. Slight heating was observed as well as the appearance of a solid. It was heated under reflux for 1 hour. After cooling, it was filtered and the product was recrystallized in ethanol. Melting point 164° C.

1. temperatureSlight heating
2. temperatureIt was heated
3. temperatureunder reflux for 1 hour
4. temperatureAfter cooling
5. filtrationit was filtered
6. customthe product was recrystallized in ethanol