反应详情

温度

100 °C

A mixture of methyl 2,6-dichloronicotinate (53.3 g, 0.26 mol), 3-fluorophenethyl amine (37.3 mL, 0.29 mol), K2CO3 (72 g 0.52 mol) and NMP (150 mL) was stirred at 100° C. for 10 hrs. The mixture was diluted with ethyl acetate (2×300 mL) and washed with brine. The organic layers were combined, dried (MgSO4) and concentrated. The residue was purified by silica gel chromatography using hexane-EtOAc (9:1) as eluant to give methyl 6-chloro-2-(3-fluorophenethylamino)nicotinate as an off-white solid (44 g, 54%). LRMS (M+H+) m/z 309.0.

1. washwashed with brine
2. dry with materialdried (MgSO4)
3. concentrationconcentrated
4. customThe residue was purified by silica gel chromatography