反应详情

温度

5 °C

Nitration mixture (sulfuric acid 40 ml+nitric acid 5.5 ml) was added dropwise to 4-fluorobenzaldehyde (10 g, 80.57 mmol) at 0° C. and the mixture was stirred at 5° C. for 20 min and at RT for 1 h. The mixture was quenched by the addition of crushed ice. The precipitate formed was filtered and was washed repeatedly with water to give white solid. The solid was dried under vacuum to give the product in 77% yield (10.5 g). 1H NMR (300 MHz, CDCl3): δ 10.04 (s, 1H), 8.58 (dd, 1H), 8.22-8.18 (m, 1H), 7.5 (t, 1H).

1. customThe mixture was quenched by the addition of crushed ice
2. customThe precipitate formed
3. filtrationwas filtered
4. washwas washed repeatedly with water
5. customto give white solid
6. customThe solid was dried under vacuum
7. customto give the product in 77% yield (10.5 g)