Sodium hydride → 4-(2-(4-Nitronaphthalen-1-yloxy)propan-2-yl)pyridin-2-amine

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 2-(2-aminopyridin-4-yl)propan-2-ol (40) (1.55 g, 10.0 mmol) in DMF (30 mL), under nitrogen at 0° C., was added sodium hydride (60% wt, 0.61 g, 15.0 mmol) and the resulting mixture was stirred at 0° C. for 5 min. A solution of 1-fluoro-4-nitronaphthalene (14) (1.95 g, 10 mmol) in DMF (30 mL) was added dropwise and the resulting dark-red mixture was stirred at 0° C. for a further 5 min and then at RT for 2 hr. The reaction mixture was quenched by the addition of saturated aq NH4Cl solution (10 mL). Water (150 mL) and EtOAc (150 mL) were added, and the layers were separated. The aqueous layer was extracted with EtOAc (3×100 mL) and the combined organic extracts were washed with brine, dried (MgSO4) and evaporated in vacuo. The crude residue was purified by flash column chromatography (SiO2, 80 g, 0-60% EtOAc in isohexane, gradient elution) to afford the title compound (41) (282 mg, 8%) as a red oil: m/z 324 (M+H)+ (ES+).

Provenance & Evidence