Potassium Carbonate → Methyl 2'-methyl-2-nitro-1,1'-biphenyl-4-carboxylate

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A suspension of methyl 4-bromo-3-nitrobenzoate (Chess 1687; 3 g; 11.53 mmol; 1 eq.), o-tolylboronic acid (Aldrich 393606; 1.88 g; 13.84 mmol; 1.2 eq.), potassium carbonate (7.97 g, 57.68 mmol, 5 eq.) and tetrakis(triphenylphosphine)palladium(0) (668.2 mg, 0.577 mmol, 0.05 eq.) in toluene (15 mL) and water (15 mL) was stirred at 120° C. for 14 hours. The resulting mixture was allowed to return to room temperature and the two phases were separated. The organic layer was concentrated in vacuo and purified by column chromatography (c-hexane) to afford the title compound (2.5 g, 79%) as a white solid.

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