Potassium Carbonate → HCID 90408843, compound

Participants

Reaction Conditions

Reaction Steps

Dimethyl 1-diazo-2-oxopropylphosphonate (290 mg, 1.5 mmol, 1.2 equiv) was added to a stirred mixture of methyl 4-amino-3-chloro-5-fluoro-6-(3-fluoro-4-formylphenyl)picolinate (410 mg, 1.3 mmol, 1.0 equiv) and solid potassium carbonate (350 mg, 2.5 mmol, 2.0 equiv) in methanol (12 mL) at 23° C. The resulting cloudy pale yellow mixture was stirred at 23° C. for 2 h. The reaction mixture was diluted with water (150 mL) and extracted with dichloromethane (4×60 mL). The organic layers were dried (magnesium sulfate), gravity filtered, and concentrated by rotary evaporation. The residue was purified by silica gel column chromatography (33% ethyl acetate in hexanes) to afford the title compound as a white powder (150 mg, 38%).

Provenance & Evidence