4'-Hydroxyacetophenone → HCID 13482750, compound

Participants

Reaction Steps

To a solution of the potassium salt of 4-hydroxyacetophenone (25.0 g, 0.14 mol) in DMF (100 ml) is added ethyl 2-chloropropanoate (27.3 g, 0.20 mol) over 30 minutes and stirred at 85°-90° C. for 3 under nitrogen. The reaction is filtered to remove KC1 and the filtrate is concentrated under reduced pressure to remove DMF and the product is analyzed by GLC. The product is dissolved ine thyl acetate (300 mL) and extracted with 2N NaOH (2x 100 mL) and water (100 mL). The organic phase is dried and concentrated to give pure ethyl 2-(4-acetylphenoxy)-propanoate (30 g) (yield 75%); m.p. 49.6° C.; IR (KBr) 1747.7 (vs), 1669.8 (vs); 1H NMR (CHCl3) delta 1.18 (t, J=7.2 Hz, 3H), 1.58 (d, J=6.8 Hz, 3H), 2.46 (s, 3H), 4.15 (q, J=7.2, 2H), 4.77 (q, J=6.8, 1H), 6.83 and 7.84 (dd, J=9.0 Hz, 4H).

Provenance & Evidence