Potassium Phosphate, Tribasic → 4-((1-Benzhydrylpiperidin-4-yl)methoxy) 5-cyclopropyl-2-fluorobenzoic acid

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-((1-benzhydrylpiperidin-4-yl)methoxy)-5-chloro-2-fluorobenzoic acid (480 mg, 0.94 mmol), cyclopropylboronic acid (162 mg, 1.88 mmol), potassium phosphate (797 mg, 3.67 mmol), palladium acetate (21 mg, 0.047 mmol) and tricyclohexylphosphine tetrafluoroborate (36 mg, 0.094 mmol) in toluene (10 mL) and water (0.5 mL) was stirred under a nitrogen atmosphere at 100° C. for 18 h. The reaction mixture was cooled down, quenched with water (50 mL) and extracted with ethyl acetate (20 mL×3). The combined organic layers were washed with brine (20 mL), dried over anhydrous sodium sulfate, filtered and concentrated to afford product (320 mg, 46%, crude) as oil which was used in the next step without further purification. LCMS (ESI) m/z: 458.1 [M+H]+.

Provenance & Evidence