反应详情

温度

70 °C

To a mixture of 7-bromo-2-iodoquinazoline (69 mg, 206 μmol), triphenylphosphine (5.4 mg, 21 μmol), and Pd(OAc)2 (3.2 mg, 14 μmol) in DMF (4.0 mL) was added TEA (72 μL, 515 μmol) and formic acid (9.5 μL, 247 μmol). The reaction mixture was stirred at 70° C. overnight. After cooling, the reaction mixture was concentrated, and the crude residue was dissolved in DCM and mixed with SiO2. The solvent was evaporated, and the residue was purified with flash column chromatography (pure DCM→3% MeOH in DCM) to obtain the desired product 7-bromoquinazoline (22 mg, 51%) as a white solid. LCMS (API-ES) m/z (%): 210.0 (100%, M++H).

1. temperatureAfter cooling
2. concentrationthe reaction mixture was concentrated
3. dissolutionthe crude residue was dissolved in DCM
4. additionmixed with SiO2
5. customThe solvent was evaporated
6. customthe residue was purified with flash column chromatography (pure DCM→3% MeOH in DCM)