| 摘要 |
PURPOSE:To obtain the titled compound useful as a raw material for mdeicines and agricultural chemicals, etc. in high yield using inexpensive and easily available raw materials, by reacting a 3-alkoxyacrylonitrile with hydroxylamine in the presence of an alkali metal hydroxide. CONSTITUTION:A 3-alkoxyacrylonitrile of the formula ROCH=CHCN [R is 1-8C alkyl (which may be substituted by alkoxy or halogen, etc.)] is reacted with 0.1-10mol, based on 1mol 3-alkoxyacrylonitrile, hydroxylamine in a solvent, e.g. water, in the presence of an alkali metal hydroxide, e.g. NaOH, at 10-150 deg.C for 0.5-10hr to afford the aimed compound. The hydroxylamine is used in the form of a salt, e.g. sulfate, hydrochloride, nitrate, phosphate, acetate or toluenesulfonate, etc. The amount of the alkali metal hydroxide to be used is 1-10mol based on 1mol hydroxylamine salt. If the amount of the alkali metal hydroxide to be used is larger than 1.5mol, the aimed compound is directly obtained.
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