| 摘要 |
In order to prepare O-substituted hydroxylammonium salts having formula (I): R1-CHX-O-NH2 . HL, in which L = halogen, hydrogen sulphate; X = H, alkyl R1 = possibly substituted phenyl, thienyl, furanyl, pyrrolyl or -CR2=CR3R4, in which R2, R3, R4 = H, halogen or alkyl, an acetonoxime-O-alkyl or acetonoxime-O-benzyl ether having formula (II) is reacted with water and a mineral acid H-L while the resulting acetone is continuously removed, and hydrolysis is intermittently carried out at 0-50 .degree.C and under 10-500 mbar pressure. The O-substituted hydroxylammonium salts having the formula (I) are intermediate products for plant protective agents and pharmaceuticals.
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