Acetyl chloride → HCID 54429507, compound

Participants

Reaction Steps

Acetyl chloride (0.49 g, 6.2 mmol) is added dropwise to a mixture of 2[[2-chloro-3-[1-(N-hydroxyamino)ethyl]phenyl]amino]benzoic acid methyl ester (2.0 g, 6.2 mmol) and sodium acetate (0.77 g, 9.4 mmol) in 2:1 dioxane:water with ice bath cooling. The reaction mixture is stirred at room temperature overnight. It is then diluted with water (100 mL) and extracted with ethyl acetate (200 mL). The organic layer is washed with water (200 mL) and brine (100 mL), and is dried over magnesium sulfate. Evaporation of the ethyl acetate gives the crude product which is purified by flash chromatography (silica, 50% ethyl acetate/hexane). Recrystallization gives 2-[[3-[1-(acetylhydroxyamino)ethyl]-2-chlorophenyl]amino]benzoic acid methyl ester (0.34 g, 15%). mp=171-172° C.

Provenance & Evidence