申请人:Ciba-Geigy Corporation
公开号:US04995902A1
公开(公告)日:1991-02-26
The invention relates to novel herbicidally active cyclohexanediones of formula I or I' ##STR1## in which R.sup.1 and R.sup.2 independently of one another are each hydrogen; halogen; nitro; cyano; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n --; COR.sup.8 ; C.sub.1 -C.sub.4 haloalkoxy; or C.sub.1 -C.sub.4 haloalkyl; R.sup.3, R.sup.4 and R.sup.5 independently of one another are each hydrogen; C.sub.1 -C.sub.4 alkyl; or phenyl or benzyl each unsubstituted or substituted by up to three identical or different substituents from halogen, nitro, cyano, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl-S(O).sub.n --, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 haloalkyl-S(O).sub.n -- and C.sub.1 -C.sub.4 haloalkoxy; R.sup.6 is hydrogen; C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxycarbonyl; or cyano; R.sup.7 is OH; or O.sup..crclbar. M.sup..sym. ; R.sup.8 is OH; C.sub.1 -C.sub.4 alkoxy; NH.sub.2 ; C.sub.1 -C.sub.4 alkylamino; or di-C.sub.1 - C.sub.4 alkylamino; n is 0, 1 or 2; M+ is a cation equivalent of a metal ion or of an ammonium ion that is unsubstituted or substituted by up to three C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl groups, to herbicidal compositions, to processes for the preparation of novel compounds and to novel intermediates and the preparation thereof.
该发明涉及公式I或I'的新型除草活性环己二酮##STR1##其中R.sup.1和R.sup.2彼此独立地分别是氢;卤素;硝基;氰基;C.sub.1 -C.sub.4烷基;C.sub.1 -C.sub.4烷氧基;C.sub.1 -C.sub.4烷基-S(O).sub.n --;COR.sup.8;C.sub.1 -C.sub.4卤代烷氧基;或C.sub.1 -C.sub.4卤代烷基;R.sup.3,R.sup.4和R.sup.5彼此独立地分别是氢;C.sub.1 -C.sub.4烷基;或苯基或苄基,每个未取代或通过最多三个相同或不同的卤素、硝基、氰基、C.sub.1 -C.sub.4烷基、C.sub.1 -C.sub.4烷氧基、C.sub.1 -C.sub.4烷基-S(O).sub.n --、C.sub.1 -C.sub.4卤代烷基、C.sub.1 -C.sub.4卤代烷基-S(O).sub.n --和C.sub.1 -C.sub.4卤代烷氧基的取代基;R.sup.6是氢;C.sub.1 -C.sub.4烷基,C.sub.1 -C.sub.4烷氧羰基;或氰基;R.sup.7是OH;或O.sup..crclbar. M.sup..sym.;R.sup.8是OH;C.sub.1 -C.sub.4烷氧基;NH.sub.2;C.sub.1 -C.sub.4烷基氨基;或二-C.sub.1 -C.sub.4烷基氨基;n为0、1或2;M+是金属离子或未取代或通过最多三个C.sub.1 -C.sub.4烷基、C.sub.1 -C.sub.4羟基烷基或C.sub.1 -C.sub.4烷氧基-C.sub.1 -C.sub.4烷基基团取代的铵离子的阳离子当量;以及用于制备新化合物的除草剂组合物、用于制备新中间体及其制备方法。