反应详情

温度

100 °C

In a microwave vial, 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine-2-carbonitrile (279 mg, 1.51 mmol), 2-bromo-benzaldehyde (230 mg, 1 mmol) and 2 ml of actonitrile were mixed. Then, 2 ml of 1N aqueous sodium carbonate was added, followed by 5 mole percent of dichlorobis(triphenylphosphine)-palladium(II). The reaction vessel was sealed and heated at 100° C. for 10 minutes with microwave irradiation. After cooling, 50 ml of ethyl acetate was added, the organic layer was separated, washed with water and dried over sodium sulfate. The organic solvent was evaporated to give crude product which was purified by ISCO to give 150 mg of 5-(2-formyl-phenyl)-pyridine-2-carbonitrile, yield 72%.

1. customThe reaction vessel was sealed
2. temperatureAfter cooling
3. customthe organic layer was separated
4. washwashed with water
5. dry with materialdried over sodium sulfate
6. customThe organic solvent was evaporated
7. customto give crude product which
8. customwas purified by ISCO