反应详情

温度

80 °C

To a mixture of (273 mg, 1 mmol) of 4-Acetoxy-2-bromo-5-methoxybenzaldehyde, (164 mg, 1 mmol) of 4-isopropylphenylboronic acid and 276 mg (2 mmol) of K2CO3 in 5 mL of DMF and 1 mL of H2O was added 73.1 mg (0.1 mmol) of Pd(dppf)Cl2. The mixture was heated at 80° C. overnight. After the removal of the catalyst via filtration, the mixture was repartitioned between EtOAc and H2O. Aqueous layer was extracted 3 times with EtOAc and organic layers were combined and dried over Na2SO4. After the removal of the solvent, the residue was chromatographed to give 362 mg of 5-Hydroxy-4′-isopropyl-4-methoxy-biphenyl-2-carbaldehyde (72%).

1. customAfter the removal of the catalyst
2. filtrationvia filtration
3. extractionAqueous layer was extracted 3 times with EtOAc and organic layers
4. dry with materialdried over Na2SO4
5. customAfter the removal of the solvent
6. customthe residue was chromatographed