反应详情

A mixture of 2,6-diamino pyridine (5.2 g., 4.76 mmole), 1,1,1,2,2,6,6,7,7,7-decafluoroheptan-3,5-dione (14.5 g., 4.80 mmole) and 85% phosphoric acid (50 ml.) is stirred at 90°-95° C. for 6 hours. When cool, the reaction mixture is poured into ice-water and neutralized with ammonium hydroxide to pH 7. The solid is collected, washed with water, dried, and can be purified by recrystallization from benzene.

1. temperatureWhen cool
2. customThe solid is collected
3. washwashed with water
4. customdried
5. customcan be purified by recrystallization from benzene