反应详情

温度

160 °C

To a suspension of 6.6 g (30.5 mmol) 5-(benzyloxy)-2-methyl-4H-pyran-4-one in 150 ml 30% AcOH was added 7.5 g (45.8 mmol) m-aminobiphenyl. The reaction mixture was heated at 160° C. for 18 h, then cooled to rt, extracted with 300 ml EtOAc, washed with brine, and concentrated in vacuo. Purification by flash chromatography (330 g silica gel, 0-20% MeOH:EtOAc) afforded 5-(benzyloxy)-1-biphenyl-3-yl-2-methylpyridin-4(1H)-one. LCMS (M+H)+=368.3.

1. temperaturecooled to rt
2. extractionextracted with 300 ml EtOAc
3. washwashed with brine
4. concentrationconcentrated in vacuo
5. customPurification by flash chromatography (330 g silica gel, 0-20% MeOH:EtOAc)