反应详情

To a suspension of 3-nitrophenyl isocyanate (10 g, 61 mmol) and glycine methyl ester hydrochloride (8.4 g, 67 mmol, 1.1 equiv.) in dichloromethane (250 mL) was added triethylamine (10 mL, 72 mmol, 1.2 equiv.) at 0° C. The resulting solution was stirred at room temperature overnight. The resulting dark brown solution was concentrated and triturated in water to give a light yellow suspension. The suspension was filtered and the filter cake was washed with water and air-dried to give [[[(3-nitrophenyl)amino]carbonyl]aminoacetic acid methyl ester (15 g) in quantitative yield.

1. concentrationThe resulting dark brown solution was concentrated
2. customtriturated in water
3. customto give a light yellow suspension
4. filtrationThe suspension was filtered
5. washthe filter cake was washed with water
6. customair-dried