Methanesulfonic Acid → 5-(4-Methoxyphenyl)-2,2-dimethyl-4-(4-((5-methylpyridin-2-yl)methoxy)phenyl)furan-3(2H)-one methanesulfonate

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Reaction Steps

Methanesulfonic acid (462 mg, 4.8 mmol) was added to a solution of 544-methoxyphenyl)-2,2-dimethyl-4-(4-((5-methylpyridin-2-yl)methoxy)phenyl)furan-3(2H)-one (2.0 g, 4.8 mmol) in DCM (5 ml) and diethyl ether (50 mL) at RT under an atmosphere of nitrogen. The reaction mixture was stirred at RT for 4 h upon which the solids were collected by filtration, washed with 20% DCM in diethyl ether and dried in vacuo to afford 5-(4-Methoxyphenyl)-2,2-dimethyl-4-(4-((5-methylpyridin-2-yl)methoxy)phenyl)furan-3(2H)-one methanesulfonate (2.0 g, 90.9%) as a white solid. 1H NMR: 200 MHz, DMSO-d6: δ 8.5 (s, 1H), 7.6 (d, 1H), 7.55 (d, 2H), 7.4 (d, 1H), 7.2 (d, 2H), 7.1 (d, 2H), 7.0 (d, 2H), 5.2 (s, 2H), 3.8 (s, 3H), 2.35 (s, 3H), 2.3 (s, 3H), 1.45 (s, 6H), HPLC: (99.3%, Condition-A).

Provenance & Evidence