Cesium carbonate → HCID 86621143, compound

Participants

Reaction Conditions

Reaction Steps

A 100 mL round bottom flask was charged with 3-bromo-4-fluorobenzaldehyde (1.0 g, 4.93 mmol), tris(dibenzylideneacetone)dipalladium(0) (450 mg, 0.493 mmol), Xantphos (4,5-bis(diphenylphosphino)-9,9-dimethylxanthene) (428 mg, 0.739 mmol), and cesium carbonate (2.4 g, 7.39 mmol). The mixture was purged with nitrogen, and anhydrous dioxane (15 mL), and 5-methylpyrrolidinone (0.586 g, 5.91 mmol) were added. The reaction mixture was purged with nitrogen again, and heated at 100° C. for 20 hours. After cooling to room temperature, the reaction mixture was partitioned between ethyl acetate and brine. The organic phase was dried over MgSO4, filtered and concentrated. The residue was separated by flash chromatography (50% ethyl acetate in hexane) to provide the title compound. MS (DCI/NH3) m/z 222 (M+H)+.

Provenance & Evidence