METHOD AND INTERMEDIATES COMPOUNDS FOR SYNTHESIS OF SIMPLE HYDROXYLAMINE ETHERS AND THEIR SALTS Russian patent published in 1998 - IPC

FIELD: organic chemistry and chemical technology. SUBSTANCE: invention relates to simple hydroxylamine ethers of the formula (I) where X is halogen, C_1-4-alkyl and C_1-4-halogenalkyl; Y is H, NO₂, halogen, C_1-4-alkyl; n = 0-2; Alk is C₂-- or C₃--alkylene chain that can carries from one to three C_1-3-alkyl groups. Ethers are synthesized by interaction of hydroxyimino-compound of the formula (II) where R¹ is alkyl; R² is alkyl, alkoxy or R¹ + R² is alkylene chain with alkylating agent in the presence of base, or the corresponding anion of compound (II) is treated directly with alkylating agent (III) and converted to hydroxyimino-derivative (IV) . Then (IV) is split to salt of compound (I) with mineral acid or strong organic acid. The synthesized compounds are intermediate products used for synthesis of compounds used for plant protection and synthesis of pharmaceutical preparations. EFFECT: improved method of synthesis. 9 cl, 1 tbl, 8 ex