反应详情

温度

100 °C

To POCl3 (20 mL) is added 6-benzyl-5,6,7,8-tetrahydro-1,6-naphthyridin-2(1H)-one (1.21 g, 5.04 mmol) and the mixture is heated at 100° C. for 6 hr. Solvent is removed and the thick oil is poured onto crashed ice (60 g). Upon stirring, solid Na2CO3 is added to the suspension until pH>7. EtOAc (60 ml) is added and the layers are separated. The aqueous layer is extracted with EtOAc (30 ml) and the combined extracts are dried and evaporated. The residue is purified by flash silica gel column eluting with hexane/EtOAc (4:1) to give the title compound as a light yellow solid. MS (M+1): 259.1.

1. customSolvent is removed
2. additionthe thick oil is poured
3. additionsolid Na2CO3 is added to the suspension until pH>7
4. additionEtOAc (60 ml) is added
5. customthe layers are separated
6. extractionThe aqueous layer is extracted with EtOAc (30 ml)
7. customthe combined extracts are dried
8. customevaporated
9. customThe residue is purified by flash silica gel column
10. washeluting with hexane/EtOAc (4:1)