Novel herbicides

Details Novel herbicides Novel herbicides

1989-07-11

1991-02-26

Fan, Jane T.

Chemistry: fertilizers

Processes and products

Forms or conditioning

546314, 546315, 546327, 47 576, C07D21350, A01N 4340

Patent

active

049959026

ABSTRACT:
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.

REFERENCES:
patent: 4319916 (1982-03-01), Abdulla
patent: 4631081 (1986-12-01), Watson et al.
patent: 4708732 (1987-11-01), Carter
patent: 4781751 (1988-11-01), Chin
patent: 4783213 (1988-11-01), Lee
patent: 4872902 (1987-10-01), Brunner
193087D CA vol. 83, 1975.

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