Dimethylformamide → 5-Phenyl-2-furaldehyde

반응식

CN(C)[CH:3]=[O:4].O=P(Cl)(Cl)Cl.[C:11]1([C:17]2[O:18][CH:19]=[CH:20][CH:21]=2)[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.C([O-])(=O)C.[Na+]>>[C:11]1([C:17]2[O:18][C:19]([CH:3]=[O:4])=[CH:20][CH:21]=2)[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

참가 물질

반응물 4

HCID 6228Dimethylformamide

HCID 24813Phosphorus oxychloride

HCID 517045Sodium Acetate

HCID 5193632-Phenylfuran

생성물 1

HCID 27694205-Phenyl-2-furaldehyde수율 83.7%

반응 조건

온도: 80 °C

실험 절차

To a 0° C. solution of N,N-dimethylformamide (1.9 mL, 24.97 mmol) in a three-neck flask equipped with a condenser was added POCl3 (0.65 mL, 6.94 mmol) dropwise via syringe with stirring. When the heat of the reaction subsided, 2-phenylfuran (1.0 g, 6.94 mmol) was added. The reaction was warmed to 80° C. and stirred overnight. The solution was cooled to room temperature and then neutralized to pH 8 with aqueous saturated sodium acetate. The mixture was extracted with ether (3×30 mL), dried over MgSO4, filtered and evaporated. Chromatography (silica gel, 20% ether/hexanes) yielded 1.0 g (83%) of 5-phenyl-2-furaldehyde.