反应详情

The triphenylphosphonium salt of benzyl chloride (38.9 g., 0.10 mole) is added to a solution of sodium (3.0 g.) in ethanol (200 ml.). The resulting solution is treated with 2-nitrobenzaldehyde (16 g., 0.10 mole) and stirred overnight. The mixture is filtered, washed with water and extracted with dichloromethane. The extracts are evaporated to a dark residue which is extracted with carbon tetrachloride, then these extracts are concentrated and passed through a column of alumina, eluting with hexane and carbon tetrachloride to give a yellow oil, 2-nitrostilbene.

1. filtrationThe mixture is filtered
2. washwashed with water
3. extractionextracted with dichloromethane
4. customThe extracts are evaporated to a dark residue which
5. extractionis extracted with carbon tetrachloride
6. concentrationthese extracts are concentrated
7. washeluting with hexane and carbon tetrachloride