反应详情

To a solution of iminoacetic acid disodium salt monohydrate (5.0 grams, 25.6 mmol) in dioxane (50 ml) and water (50 ml) was added triethylamine (5.3 ml, 38 mmol) followed by 4-methoxybenzenesulfonyl chloride (5.8 grams, 28.0 mmol). The mixture was stirred overnight at room temperature and diluted with methylene chloride. The solution was washed with 1 N hydrochloric acid solution, water and brine, dried over magnesium sulfate and concentrated under vacuum leaving [carboxymethyl(4-methoxybenzenesulfonyl) amino]acetic acid as a white solid, 3.83 grams (49%).

1. washThe solution was washed with 1 N hydrochloric acid solution, water and brine
2. dry with materialdried over magnesium sulfate
3. concentrationconcentrated under vacuum