Acetic Acid → 3-(3-Chlorophenyl)-2-oxopropyl Acetate

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This crude material was reacted with acetic acid (1.42 mL, 1.49 g, 24.8 mmol) and triethylamine (3.46 mL, 2.51 g, 24.8 mmol), as described above for the synthesis 10 of 3-(3,4-dichlorophenyl)propan-2-one. Flash chromatography over silica gel (20% ethyl acetate in hexanes) gave pure product (1.22 g, 46% yield): 1H NMR (400 MHz, CDCl3) δ 2.16 (s, 3H) 3.72 (s, 2H) 4.69-4.71 (m, 2H) 7.08-7.11 (m, 1H) 7.21-7.23 (m, 1H) 7.26-7.29 (m, 2H).

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