Potassium Carbonate → HCID 68616913, compound

Participants

Reaction Steps

A mixture of 3-hydroxy-4-methoxy-benzoic acid (2.00 g, 10.2 mmol), 3-(chloromethyl)-5-methylisoxazole (1.61 g, 12.2 mmol; commercially available from Maybridge, SPB01262DA), anhydrous K2CO3 (2.11 g, 15.3 mmol) and Nal (0.31 g, 2.04 mmol) in MeCN (35 mL) is refluxed overnight. After cooling to room temperature, the mixture is filtered, the filtrate is diluted with CH2Cl2 and the organics are washed with aqueous 0.5M NaOH, water and brine. Drying over Na2SO4 and evaporation to dryness affords the crude title compound as oil. MS: 292.0 [M+H]+. tR (HPLC, Nucleosil C18HD column, 5-100% CH3CN/H2O/6 min, 100% CH3CN/2 min, CH3CN and H2O containing 0.1% TFA, flow: 1 mL/min): 4.14 min. 1H-NMR (CDCl3): δ 1.39 (t, 3H), 2.45 (s, 3H), 3.93 (s, 3H), 4.35 (q, 2H), 5.20 (s, 2H), 6.15 (s, 1H), 6.15 (dd, 1H), 6.90 (d, 1H), 7.70 (dd, 1H) ppm.

Provenance & Evidence