Nitromethane → 1-Chloro-3-fluoro-5-(2-nitroethenyl)benzene

Participants

Reaction Steps

Dissolve 3-chloro-5-fluorobenzaldehyde (4.0 g, 25.2 mmol) in glacial acetic acid (15 mL). Add nitromethane (4.1 mL, 75.7 mmol) and ammonium acetate (1.94 g, 25.2 mmol) and heat to reflux for 4 hours. Cool and pour over ice. Dilute with 2 N sodium hydroxide and extract with ethyl acetate, dry (magnesium sulfate), concentrate and purify (silica gel chromatography, eluting with 1:1 dichloromethane:hexanes) to give the desired compound as a beige solid (2.97 g, 58%).

Provenance & Evidence