反应详情

To a stirred solution of 1-(5-carboxy-2-pyridinyl)-1-butanone (2 mmol) in 20 ml of pyridine, hydroxylamine hydrochloride (4 mmol) is added. The reaction mixture is stirred at room temperature for 5 h. The solvent is distilled off and the residue crystallized from ethyl acetate; m.p. 203°-205°.

1. distillationThe solvent is distilled off
2. customthe residue crystallized from ethyl acetate