反应详情

Dissolve 3-amino-4-hydroxymethyl-benzoic acid methyl ester (step (c), 4.2 g, 23.3 mmol) in 125 mL of anhydrous CH2Cl2 and add MnO2 (20.2 g, 232.8 mmol) and stirred at RT. After 5 h, the solution was filtered through Celite and concentrated to afford the title compound as a yellow solid upon drying under vacuum. MS m/z: 180.1 (M+1).

1. filtrationthe solution was filtered through Celite
2. concentrationconcentrated