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    • 69. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON TRIOXIMDERIVATEN
    • EP1296939A1
    • 2003-04-02
    • EP01947442.8
    • 2001-07-04
    • BASF AKTIENGESELLSCHAFT
    • KRAMER, AndreasKIEFER, MatthiasHENNINGSEN, MichaelSIEGEL, WolfgangSCHRÖDER, Jochen
    • C07C249/08C07C251/60C07C49/12
    • C07C249/06C07C249/08C07C251/40
    • The invention relates to a method for the production of trioxime derivatives of formula (I): where R?1 and R2¿ = independently, cyano, alkyl, haloalkyl or cycloalkyl and R?3 and R4¿ = independently, alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl. Said method comprises the following reaction steps, without isolation of the intermediate products: A) nitrosation of 1,3 diketones of formula (II), to give monooximes of formula (III): B) oximation of (III) with hydroxylamine derivatives of formula (IV): H¿2N-OR?3', where R3' = H or R3 to give bisoximes of formula (V): C) alkylation of (V) with alkylating agents, or acylation of (V) with acylating agents to give compounds of formula (VI) and D) finally, oximation of (VI) with hydroxylamine to give compounds of formula (I).
    • 本发明涉及制备式(I)三肟衍生物的方法:其中R 1和R 2独立地为氰基,烷基,卤代烷基或环烷基,R 3和R 4独立地为烷基,卤代烷基,环烷基 ,烷基羰基或芳基烷基。 所述方法包括以下反应步骤,不分离中间产物:A)式(II)的1,3-二酮的亚硝化,得到式(III)的单肟:B)用式(III)的羟胺衍生物 (V)的烷基化(C):用烷基化剂将(V)烷基化或用酰化剂将(V)酰化成(IV):其中R3'= H或R3以生成式(V)的双肟: 最后给出式(VI)化合物和D),用羟胺肟化(VI)得到式(I)化合物。