反应详情

22g of finely powdered 3-benzoylacrylic acid was added in 1-gram portions to 11 g of stirred fuming (90%) nitric acid at -5° over a 30 minute period, the mixture being allowed to heat to 0°. Then the temperature of the mixture was allowed to rise to 2° and held until a clear solution was obtained. The mixture then was poured on ice, and the solid which formed was filtered, washed with water, dried (MgSO4) and recrystallized from ethanol to give 3-(3-nitrobenzoyl)acrylic acid (8A), m.p.: 199°-201°.

1. temperatureto heat to 0°
2. customto rise to 2°
3. customwas obtained
4. additionThe mixture then was poured on ice
5. customthe solid which formed
6. filtrationwas filtered
7. washwashed with water
8. dry with materialdried (MgSO4)
9. customrecrystallized from ethanol