Potassium Carbonate → HCID 86698610, compound

Participants

Reaction Conditions

Reaction Steps

To a degassed mixture of crude 3-[4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)phenyl]-1-(methylsulfonyl)pyrrolidine (assume 0.38 mmol), 5-bromo-6-chloro-1H-indole-3-carbaldehyde (98.4 mg, 0.38 mmol) and 2 N aqueous potassium carbonate (0.76 mL, 1.52 mmol) in toluene (2.25 mL) and ethanol (0.75 mL) was added [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (27.8 mg, 0.038 mmol). The reaction mixture was heated to 110° C. in a microwave for 30 min. After cooling to room temperature, the reaction mixture was partitioned between water and ethyl acetate. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with EtOAc/petroleum ether (0:100 to 100:0) to give 6-chloro-5-{4-[1-(methylsulfonyl)pyrrolidin-3-yl]phenyl}-1H-indole-3-carbaldehyde (100 mg) as a yellow solid. MS (ES+) 402.9 (M+H)+

Provenance & Evidence