[C:1]([O:5][C:6](=[O:14])[C:7]1[CH:12]=[CH:11][CH:10]=[C:9](Br)[CH:8]=1)([CH3:4])([CH3:3])[CH3:2].[C:15]1([CH3:24])[CH:20]=[CH:19][C:18](B(O)O)=[CH:17][CH:16]=1.C(=O)([O-])[O-].[Na+].[Na+]>C1(C)C=CC=CC=1.O>[C:1]([O:5][C:6](=[O:14])[C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([C:18]2[CH:19]=[CH:20][C:15]([CH3:24])=[CH:16][CH:17]=2)[CH:8]=1)([CH3:4])([CH3:3])[CH3:2]To a mixture of tert-butyl-3-bromobenzoate (65 g, 0.25 mol), 4-tolyl boronic acid (41.3 g, 0.30 mol) and sodium carbonate (150 g) in a mixture of toluene (500 mL) and water (50 mL), tetrakis-triphenylphosphine palladium(0) (14.5 g, 0.05 mol) was added and the reaction mixture was refluxed overnight. Cooled to RT, toluene layer was separated. The organic layer was washed with water, brine, dried. The solvent was removed under vacuum to give tert-butyl-3-(4-tolyl)benzoate (62 g, 90%).
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