SACCHARINE-5-CARBONYL-CYCLOHEXANE-1,3,5-TRIONE DERIVATIVES

摘要

1. A saccharin-5-carbonylcyclohexane-1,3,5-trione derivative of the formula I in which the substituents have the following meanings: L is C1 -C3 alkyl, C1 -C3 alkoxy; Z is C1 -C4 -alkyl; C3 C8 cycloalkyl, C3 C6 alkenyl, C3 C5 alkinyl, benzyl or phenyl, the phenyl rings each optionally being substituted one or a plurality of times by C1 -C4 alkyl, C1 -C3 alkoxy or halogen; M is hydrogen, C1 -C3 alkyl, C1 -C3 alkoxy, fluorine, chlorine, cyano, nitro or trifuoromethyl; R<1>, R<2>, R<3>, R<4> are each C1 -C4 -alkyl; or an agriculturally useful salt of formula I. 2. A saccharin derivative of the formula I as claimed in claim 1, where L is methyl or ethyl, methoxy or ethoxy. 3. A saccharin derivative of the formula I as claimed in claim 1 or 2, where Z is C1 -C4 -alkyl; C3 C8 cycloalkyl, C3 C6 alkenyl, C3 C5 alkinyl, benzyl or phenyl. methyl, ethyl, i-propyl, i-butyl or t-butyl. 4. A saccharin derivative of the formula I as claimed in claims 1 to 3, where Z is methyl, ethyl, i-propyl, i-butyl or t-butyl, cyclopropyl, cyclohexyl, allyl, propargyl, phenyl or benzyl. 5. A saccharin derivative of the formula I as claimed in claims 1 to 4, where M is hydrogen, methyl, ethyl, methoxy, ethoxy, fluorine, chlorine, cyano, nitro or trifuoromethyl. 6. A saccharin derivative of the formula I as claimed in claims 1 to 5, where M is hydrogen, methyl, ethyl, methoxy or chlorine. 7. A saccharin derivative of the formula I as claimed in claims 1 to 6, where R<1> to R<4> are each methyl, ethyl, n-propyl or n-butyl. 8. A saccharin derivative of the formula I as claimed in claims 1 to 7, where R<1> to R<4> are each methyl or ethyl. 9. A saccharin derivative of the formula I as claimed in claim 1, where L and R<1> to R<4> are each methyl, Z is methyl and M is hydrogen, methyl or chlorine. 10. A herbicidal composition comprising at least one saccharin derivative of the formula I as claimed in claim 1 and customary inert additives.