Anisole → Methyl 6-oxo-1,6-dihydropyridine-3-carboxylate
反応式
COC1C=CC(C[O:8][C:9]2[CH:18]=[CH:17][C:12]([C:13]([O:15][CH3:16])=[O:14])=[CH:11][N:10]=2)=CC=1.C1(OC)C=CC=CC=1>FC(F)(F)C(O)=O>[O:8]=[C:9]1[CH:18]=[CH:17][C:12]([C:13]([O:15][CH3:16])=[O:14])=[CH:11][NH:10]1参加物
4
実験手順
Methyl 6-(4-methoxybenzyloxy)nicotinate (2.66 g, 9.73 mmol) obtained in Step 2 and anisole (10.6 mL) were dissolved in trifluoroacetic acid (15 mL), followed by stirring at room temperature for 30 minutes. The reaction mixture was concentrated under reduced pressure, and saturated sodium hydrogencarbonate was added to the resulting residue, followed by extraction with chloroform. The organic layer was dried over anhydrous magnesium sulfate, and then the solvent was distilled away under reduced pressure. The precipitated solid was collected by filtration to afford methyl 2-oxo-1,2-dihydropyridine-5-carboxylate (1.33 g, 89%).