反应详情

N,O-(Dimethyl)hydroxylamine hydrochloride (6.45 g, 65.8 mmol), triethylamine (20 ml, 145 mmol) and 4-dimethylaminopyridine (300 mg, 2.5 mmol) were suspended in 150 ml of DMF at 0° C. 4-Nitrobenzoyl chloride (10 g, 53.8 mmol) was added. After 1.5 hours at 0° C., the mixture was diluted with ethyl acetate, washed with 1M HCl and then sat. NaCl and dried over sodium sulfate. Filtration and evaporation gave the title compound as a light yellow solid (8.51 g).

1. washwashed with 1M HCl
2. dry with materialsat. NaCl and dried over sodium sulfate
3. filtrationFiltration and evaporation