反应详情

7.7 g of the compound from Example 6 and 2.9 g of K2CO3 are heated at 140°-5° C. for 4 hours in 36 ml of DMF. The mixture is subsequently poured onto ice and acidified, and the precipitated solid is separated off and dried. Yield: 4.5 g, melting point: 279°-82° C.

1. additionThe mixture is subsequently poured onto ice
2. customthe precipitated solid is separated off
3. customdried