反应详情

(Step 1) To 50 g of 2,4,6-trichloro-1,3,5-triazine was added 300 ml of dry tetrahydrofuran and while the mixture was stirred at room temperature, 150 ml of 2M phenylmagnesium bromide-tetrahydrofuran was added dropwise over about 30 minutes. After completion of dropwise addition, the mixture was stirred at room temperature for 1 hour, and then concentrated. To the residue was added iced water and the resultant was extracted with ether. The extract was washed with water, dried over MgSO4, and concentrated. The resulting crystal crop was recrystallized from isopropyl alcohol to provide 21.1 g of 2,4-dichloro-6-phenyl-1,3,5-triazine as pale yellow crystals.

1. additionAfter completion of dropwise addition
2. stirringthe mixture was stirred at room temperature for 1 hour
3. concentrationconcentrated
4. additionTo the residue was added iced water
5. extractionthe resultant was extracted with ether
6. washThe extract was washed with water
7. dry with materialdried over MgSO4
8. concentrationconcentrated
9. customThe resulting crystal crop was recrystallized from isopropyl alcohol