反应详情

3-Cyano-4,6-di-n-propyl-2(1H)-pyridinone was prepared as follows: A mixture containing 15.6 g of 4,6-nonanedione, 200 ml of methanol, 10 g of cyanoacetamide and 6 g of sodium methoxide was refluxed with stirring for 22 hours and then stripped to dryness in vacuo. The residue was dissolved in 100 ml of water and the solution acidified with acetic acid. The white precipitate was collected, washed with water, air-dried, recrystallized from isopropyl alcohol-n-hexane and dried in vacuo at 80°-85° C. to produce 16.7 g of 3-cyano-4,6-di-n-propyl-2(1H)-pyridinone, m.p. 151°-152° C.

1. custom3-Cyano-4,6-di-n-propyl-2(1H)-pyridinone was prepared
2. temperaturewas refluxed
3. customThe white precipitate was collected
4. washwashed with water
5. customair-dried
6. customrecrystallized from isopropyl alcohol-n-hexane
7. customdried in vacuo at 80°-85° C.