Potassium Carbonate → HCID 86700908, compound

Participants

Reaction Steps

A stirred solution of 1-(6-chloro-4-hydroxybenzofuran-2-yl)ethanone (Example 37D, 1.18 g, 5.60 mmol) in dry DMF (10 mL, 129 mmol) at r.t. was charged with K2CO3 (0.774 g, 5.60 mmol) and DMF. The reaction mixture was stirred for 1.5 hours then partitioned between ethyl acetate and water. The organic phase was washed with brine, dried (MgSO4), filtered and concentrated to dryness. The residue was purified by ISCO using hexanes/EtOAc as eluent. Fractions containing the desired product were concentrated to give the title material (1.57 g, 5.22 mmol, 93% yield) as an amber colored oil. LC (Method B): 2.420 min. LCMS (APCI) calcd for C12H14ClO3 [M+H]+ m/z 301.06. found 301.0. 1H NMR (CDCl3, 400 MHz) δ ppm: 8.00 (d, J=0.8 Hz, 1H), 7.53 (m, 3H), 7.44 (m, 2H), 7.38 (m, 1H), 7.10 (d, J=1.6 Hz, 1H), 5.53 (s, 2H), 2.54 (s, 3H).

Provenance & Evidence