反应详情

To a solution of 2-bromoisonicotinic acid (678 mg) in tetrahydrofuran (30 ml), 8.4 ml of borane-tetrahydrofuran complex (1.17M tetrahydrofuran solution) was added, and the reaction solution was stirred overnight at room temperature. To the reaction solution was added 7.9 ml of 1N aqueous sodium hydroxide, and the mixture was stirred for 2 hours. The reaction solution was diluted with a saturated aqueous sodium chloride solution, extracted with diethyl ether, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the residue obtained was purified by silica gel column chromatography (eluent: chloroform/(chloroform/methanol (9:1)) (100:0-0:100)) to afford the title compound as a white crystal.

1. stirringthe mixture was stirred for 2 hours
2. extractionextracted with diethyl ether
3. dry with materialdried over anhydrous magnesium sulfate
4. distillationThe solvent was distilled off under reduced pressure
5. customthe residue obtained
6. customwas purified by silica gel column chromatography (eluent: chloroform/(chloroform/methanol (9:1)) (100:0-0:100))