反应详情

A mixture of 15.0 g. of 6-phenyl-3-chloropyridazine, 16.3 g. of ethyl carbazate, and 250 ml. of n-butanol is refluxed for 3 hours. The solvent is removed under vacuum and the residue triturated with cold water. Filtration gives 18.6 g. of cream colored crystals. Recrystallization gives white crystals, m.p. 158°-160° C.

1. additionA mixture of 15.0 g
2. customThe solvent is removed under vacuum
3. customthe residue triturated with cold water
4. filtrationFiltration
5. customgives 18.6 g
6. customRecrystallization
7. customgives white crystals, m.p. 158°-160° C.