Water → Methyl 5-(2-(4-fluorophenyl)-3-(methylcarbamoyl)-6-nitrobenzofuran-5-yl)-2-methoxybenzoate

Participants

Reaction Conditions

Reaction Steps

To a mixture of 2-(4-fluorophenyl)-3-(methylcarbamoyl)-6-nitrobenzofuran-5-yl trifluoromethanesulfonate (750 mg, 1.622 mmol), methyl 2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (569 mg, 1.947 mmol) and cesium carbonate (1057 mg, 3.24 mmol) in dioxane (20 mL)/water (1.0 mL) at rt under nitrogen was added Pd(PPh3)4(0) (187 mg, 0.162 mmol). The reaction mixture was heated to 100° C. and maintained at the same temperature for overnight. The reaction mixture was filtered through celite, and the celite bed washed with ethyl acetate. The filtrate was concentrated and the residue purified by Combiflash using MeOH/CHCl3 as eluant. The desired fraction was collected at 2.5% MeOH in CHCl3. Yield: 0.650 g (83%).

Provenance & Evidence