Cesium carbonate → 6-(4-Fluoro-3-(trifluoromethyl)phenyl)picolinaldehyde

Participants

Reaction Conditions

Reaction Steps

To a solution of 6-bromopicolinaldehyde (1.00 g, 5.38 mmol) in dioxane (30 mL) at ambient temperature was added 4-fluoro-3-(trifluoromethyl)phenylboronic acid (1.11 g, 5.38 mmol), 2M cesium carbonate (8.0 mL, 16 mmol) and 1,1′-bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane complex (0.220 g, 0.269 mmol). The mixture was degassed (3× vacuum/purge N2), then heated at 80° C. overnight. After cooling to room temperature the mixture was concentrated and the residue partitioned between water and CH2Cl2. The organic extract was concentrated and purified by chromatography (10% ethyl acetate:hexanes) to provide 1.31 g (91%) of the title compound. MS (DCI+) m/z 270 (M+H).

Provenance & Evidence