反应详情

The diethyl ether solution from Example 57A was treated with potassium nitrate (10.1 g, 100 mmol). After stirring for one hour, The mixture was poured onto ice and neutralized with concentrated ammonium hydroxide (˜300 ml). The crude product was collected by filtration, dried, and recrystalization from methanol to provide the title compound (8.83 g).

1. filtrationThe crude product was collected by filtration
2. customdried
3. customrecrystalization from methanol