反应详情

10.70 g (0.04 mol) of methyl 3-chlorocarbonyl-2,4-dichloro-benzoate in 50 ml of methylene chloride were slowly added dropwise at approximately 30° C. to a solution of 7.76 g (0.04 mol) of 4-chlorobenzyloxyamine hydrochloride and 4.05 g (0.04 mol) of triethylamine in 200 ml of methylene chloride. After the reaction mixture had been stirred for 12 hours at room temperature, it was washed with dilute phosphoric acid, dried and concentrated. After the residue had been extracted by stirring with diethyl ether, 19.00 g of methyl 3-(4-chlorobenzyloxy)amino-carbonyl-2,4-dichlorobenzoate were obtained.

1. washit was washed with dilute phosphoric acid
2. customdried
3. concentrationconcentrated
4. extractionAfter the residue had been extracted
5. stirringby stirring with diethyl ether