Acetyl chloride → 2'-CHLORO-4'-HYDROXYACETOPHENONE

Participants

Reaction Conditions

Reaction Steps

To a mixture of AlCl3 (42.08 g; 315.60 mmol) in CH2Cl2 (300 mL) was added dropwise 3-chloroanisole (22.50 g; 157.80 mmol), at −30° C. To the resulting mixture was added dropwise a solution of AcCl (10.50 mL; 147.63 mmol) in CH2Cl2 (100 mL) at such a rate to keep the temperature below −15° C. The resulting mixture was stirred for 4 hours at −10° C. Subsequently, the mixture was poured onto ice and extracted with CH2Cl2. The combined organic layers, were dried (MgSO4), filtered, and concentrated in vacuo. The residue was purified by column chromatography (SiO2, Et2O/hexanes 1:9) to afford 1-(2-chloro-4-methoxy-phenyl)-ethanone (17.68 g).

Provenance & Evidence