反应详情

温度

90 °C

3-Chloro-pyridine-2-carbonitrile (0.4 g) was reduced by hydrogenation in the presence of RaNi (0.1 g) in THF/20% NH3 (5 mL) at 30 psi. The solvent was removed and the residue was treated with 88% formic acid (10 mL) and heated at 90° C. overnight. The solvent was removed under reduced pressure, and the residue was re-dissolved in EtOAc. The organic layer was washed with Na2CO3, brine, dried, and concentrated. The residue was purified by silica gel column chromatography eluting with 100% EtOAc to give 0.3 g of the title compound. MS (APCI) m/e 171 (M+H)+, 1H NMR (500 MHz, DMSO-d6): □ 9.8.51-8.53 (m, 2H), 8.15 (s, 1H), 7.93 (d, J=7.98 Hz, 1H), 7.38 (dd, J=8.13, 4.16 Hz, 1H), 4.53 (d, J=5.52 Hz, 1H).

1. customThe solvent was removed
2. additionthe residue was treated with 88% formic acid (10 mL)
3. customThe solvent was removed under reduced pressure
4. dissolutionthe residue was re-dissolved in EtOAc
5. washThe organic layer was washed with Na2CO3, brine
6. customdried
7. concentrationconcentrated
8. customThe residue was purified by silica gel column chromatography
9. washeluting with 100% EtOAc