3-(4-Hydroxy-3-Methoxyphenyl)Prop-2-Enoic Acid → (2E)-3-{4-[(tert-butyldimethylsilyl)oxy]-3-methoxyphenyl}prop-2-enoic acid

反応式

[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=1[OH:14])[CH:6]=[CH:7][C:8]([OH:10])=[O:9].N1C=CN=C1.[Si:20](Cl)([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21]>CN(C)C=O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=1[O:14][Si:20]([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21])/[CH:6]=[CH:7]/[C:8]([OH:10])=[O:9]

参加物

実験手順

3-methoxy-4-hydroxy-cinnamic acid (8 g, 41.2 mmol) and imidazole (8.4 g, 123.6 mmol) were charged in a 500 mL round-bottom flask and dissolved in 30 mL of dimethylformamide. Tert-butyldimethylsilyl chloride (13.04 g, 86.5 mmol) was added thereto at 0° C., followed by stirring for 30 minutes. The reaction liquid was concentrated by distillation under reduced pressure and dichloromethane (200 mL) was added thereto, followed by washing with water.