反应详情

1-butoxy-9-fluoro-6-isopropenylbenzo[c]-1,6-naphthyridine (50 mg, 0.161 mmol) and 5% Pd on Carbon; Type A470129-5® (Johnson Matthey) (5 mg, 0.161 mmol) were combined in a vial. The vial was flushed with nitrogen for several minutes, and then EtOH (1.0 ml) was added. The reaction mixture was stirred under hydrogen (balloon pressure) for 6 hr. The reaction mixture was flushed with nitrogen, diluted with EtOAc (5 mL), and then filtered through a syringe filter to remove Pd/C. The filtrate was concentrated, and the resulting residue was adsorbed on to silica gel, then purified by column chromatography on silica gel eluting with an EtOAc/hexanes gradient to afford 1-butoxy-9-fluoro-6-isopropylbenzo[c]-1,6-naphthyridine. LRMS (ESI) calc'd for (C19H21FN2O) [M+H]+, 313.2; found 313.1.

1. customThe vial was flushed with nitrogen for several minutes
2. additionEtOH (1.0 ml) was added
3. customThe reaction mixture was flushed with nitrogen
4. additiondiluted with EtOAc (5 mL)
5. filtrationfiltered through a syringe
6. filtrationfilter
7. customto remove Pd/C
8. concentrationThe filtrate was concentrated
9. custompurified by column chromatography on silica gel eluting with an EtOAc/hexanes gradient