The invention relates to a process for preparing a compound of formula (I), in which X is CH or N, Y is NO2 or CN, Z is CHR3, O, NR3 or S, R1 and R2 are either each, independently of the other, hydrogen or unsubstituted or R4-substituted alkyl or together a two- or three-membered alkylene bridge or a two- or three-membered alkylene bridge in which one member is replaced by a hetero member selected from the group, consisting of NR5, O and S, R3 is H or unsubstituted or R4-substituted alkyl, R4 is an unsubstituted or substituted aryl or heteroaryl group, and R5 is H or alkyl, which comprises a) reacting a compound of formula (II) with a chlorinating agent or b1) initially reacting a compound of formula (IV) with a compound of formula (V) and b2) further reacting the compound of formula (II) obtainable thereby, with or without intermediate isolation, with a chlorinating agent, to intermediates used in this process, to the use of these intermediates and to a process for the preparation of these intermediates.
本发明涉及一种制备式(I)化合物的方法,其中X为CH或N,Y为
NO2或CN,Z为CHR3、O、NR3或S,R1和R2分别为氢或未取代或R4取代的烷基,或者它们一起形成一个二元或三元烷基桥或一个二元或三元烷基桥,在其中一个成员被选择自NR5、O和S的杂原子所代替,R3为H或未取代或R4取代的烷基,R4为未取代或取代的芳基或杂芳基,R5为H或烷基。该方法包括a)用
氯化试剂反应式(II)化合物或b1)首先用式(IV)化合物反应式(V)化合物,然后b2)用或不用中间分离物反应式(II)化合物所得到的中间体与
氯化试剂进一步反应,以及用于该过程的中间体的使用和制备这些中间体的方法。