m-Chloroperbenzoic acid → HCID 58305588, compound

Participants

Reaction Steps

To a solution of ethyl 3-(1-(4-cyano-2-methylphenyl)-5-(4-(methylthio)phenyl)-1H-pyrrol-2-yl)propanoate (23A) (98 mg, 0.23 mmol) in DCM (1 mL) was added m-CPBA below 0° C. by five portions. Then the reaction mixture was stirred at room temperature for 3 h. TLC showed that the reaction was complete. The mixture was diluted with DCM (10 mL) and washed with sat. NaHCO3 (15 mL), dried over Na2SO4, filtered and concentrated to afford a yellow oil, which was purified by silica gel column chromatography to afford ethyl 3-(1-(4-cyano-2-methylphenyl)-5-(4-(methylsulfinyl)phenyl)-1H-pyrrol-2-yl)propanoate (23B) as a light yellow solid (65 mg, 65%).

Provenance & Evidence