反应详情

A mixture of 6-[(2-chloro-α,α,α,6-tetrafluoro-p-tolyl)oxy]-α-methyl-1H-benzotriazole-1-acetaldehyde (0.0295 mole), semicarbazide hydrochloride (4.0 g, 0.035 mole), and sodium acetate (5.8 g, 0.071 mole) in aqueous ethanol is heated to reflux temperature, cooled and filtered. The solid filter cake is recrystallized from ethanol to give the title compound as a solid, mp 170°-171° C., identified by elemental and NMR analyses.

1. temperatureis heated
2. temperatureto reflux temperature
3. temperaturecooled
4. filtrationfiltered
5. filtrationThe solid filter cake
6. customis recrystallized from ethanol