反应详情

At about 30° C., 10.70 g (0.04 mol) of methyl 3-chlorocarbonyl-2,4-dichlorobenzoate in 50 ml of methylene chloride were slowly added dropwise to a solution of 7.76 g (0.04 mol) of O-(4-chlorobenzyl)hydroxylamine hydrochloride and 4.05 g (0.04 mol) of triethylamine in 200 ml of methylene chloride. After stirring for 12 hours at room temperature, the reaction mixture was washed with dilute phosphoric acid, dried and concentrated. Trituration of the residue with diethyl ether gave 19.00 g of methyl 3-(4-chlorobenzyloxyaminocarbonyl)-2,4-dichlorobenzoate.

1. washthe reaction mixture was washed with dilute phosphoric acid
2. customdried
3. concentrationconcentrated