发明名称 Process for the preparation of pesticides
摘要 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 (VII), 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).
申请公布号 US6156923(A) 申请公布日期 2000.12.05
申请号 US19960762217 申请日期 1996.12.06
申请人 NOVARTIS CORPORATION 发明人 FAROOQ, SALEEM;TRAH, STEPHAN;ZIEGLER, HUGO;ZURFLUEH, RENE
分类号 C07C249/04;C07C249/12;C07C251/48;C07C251/60;(IPC1-7):C07C249/04 主分类号 C07C249/04
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