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    • 70. 发明授权
    • Process for the preparation of pesticides
    • 农药制备工艺
    • US06646151B1
    • 2003-11-11
    • US09670147
    • 2000-09-26
    • Saleem FarooqStephan TrahHugo ZieglerRené Zurflüh
    • Saleem FarooqStephan TrahHugo ZieglerRené Zurflüh
    • C07C24904
    • C07C249/12C07C251/48C07C251/60
    • The invention relates to a process for the preparation of compounds of the formula or, if appropriate, a tautomer thereof, in each case in the free form or in salt form, in which A, X, Y, Z, R2, R3, R4, R5, R7, R9 and n are as defined in claim 1 and the C═N double bond marked with E has the E configuration, which comprises a1) reacting either a compound of the formula (II) mentioned above with a compound of the formula (III) mentioned above, in which X1 is a leaving group, or a2) a compound of the formula (IV) mentioned above, if appropriate in the presence of a base, with a compound of the formula (V) mentioned above, or b1) reacting a compound of the formula (VI) mentioned above with a compound of the formula R7—A—X2 (VII), in which X2 is a leaving group, and either further reacting the compound thus obtainable, of the formula (IV), for example according to method a2), or b2) reacting it with hydroxylamine or a salt thereof, if appropriate in the presence of a basic or acid catalyst, and further reacting the compound thus obtainable, of the formula (II), for example according to method a1), or c) reacting a compound of the formula (VIII), mentioned above with a C1-C6alkyl nitrite and further reacting the compound thus obtainable, of the formula (VI), for example according to method b), the E isomers of the compounds of the formulae (II), (IV) and (VI), a process for their preparation and their use for the preparation of compounds of the formula (I).
    • 本发明涉及一种制备式的化合物的方法,如果合适,其合适的是其互变异构体,其各自为游离形式或盐形式,其中A,X,Y,Z,R 2,R 3,R 4, R5,R7,R9和n如权利要求1中所定义,并且用E标记的C = N双键具有E构型,其包括a)使上述式(II)的化合物与式(II) III),其中X1是离去基团,ora2)如果合适的话,在碱的存在下,上述式(Ⅳ)的化合物与上述式(Ⅴ)的化合物相同,反应1)使 上述式(Ⅵ)化合物与式R7-A-X2(Ⅶ)化合物反应,其中X 2为离去基团,并进一步使由此得到的式(Ⅳ)化合物与 根据方法a2)的示例,orb2)如果合适,在碱性或酸性催化剂存在下,使其与羟胺或其盐反应,以及 进一步使由式(II)得到的化合物,例如按照方法a1)进行反应,或者使上述式(Ⅷ)化合物与亚硝酸C 1 -C 6烷基酯反应,并进一步使由此得到的化合物, 式(Ⅵ)化合物的方法,例如根据方法b),式(II),(Ⅳ)和(Ⅵ)化合物的E异构体,其制备方法及其制备方法 式(I)。