Substituted cyclohexene-1,2-dicarboxylic acid derivatives and intermediates for their preparation

摘要

Substituted cyclohexene-1,2-dicarboxylic acid derivatives I ;(R¹ and R² are each H, unsubstituted or substituted C₁-C₆-alkyl, C₃-C₆-alkenyl or C₃-C₆-alkynyl, C₃-C₈-cycloalkyl, unsubstituted or substituted phenyl or heterocyclyl and, if R¹ is H or C₁-C₆-alkyl, R² is additionally OH, C₁-C₆-alkoxy, C₃-C₆-alkenyloxy, C₃-C₆-alkynyloxy, C₃-C₆-cycloalkoxy, C₅-C₇-cycloalkenyloxy, C₁-C₆-haloalkoxy, C₃-C₆-haloalkenyloxy, C₃-C₇-cycloalkyl-C₁-C₆-alkoxy, C₁-C₆-alkyl-carbonyloxy, C₁-C₆-cyanoalkoxy, hydroxy-C₁-C₆-alkoxy, C₁-C₆-alkoxy-C₁-C₆-alkoxy, C₁-C₆-alkoxycarbonyl-C₁-C₆-alkoxy, C₁-C₆-alkoxy-C₁-C₆-alkoxy, C₁-C₆-alkylamino-C₁-C₆-alkoxy, C₁-C₆-dialkylamino-C₁-C₆-alkoxy, unsubstituted or substituted phenyl-C₁-C₆-alkoxy, phenyl-C₃-C₆-alkenyloxy or phenyl-C₃-C₇-alkynyloxy or unsubstituted or substituted amino, or R¹ and R², together with the nitrogen atom to which they are bonded, form an unsubstituted or substituted 3-membered to 8-membered heterocyclic structure,;R³ is H or C₁-C₆-alkyl,;R⁴ is H or halogen,;R⁵ is H, halogen, NO₂, CN or CF₃,;R⁶ is an unsubstituted or substituted 3-membered to 8-membered heterocyclic group, ACN, ACOB, OR⁹, C(R¹⁰)O, C(R¹⁰)S, C(R¹⁰)NR¹⁶, CHR¹⁰)CHR¹¹COB, C(X¹R¹⁴)(X²R¹⁵)R¹⁰ or P(R¹²)(R¹³)O, where the stated radicals have the meanings listed in the description,;or R⁵ and R⁶ together form a 3-membered to 5-membered substituted carbon chain,;and the agriculturally useful salts of Ia and Ib and intermediates for their preparation.;The compounds Ia and Ib and their intermediates are suitable as herbicides and for the desiccation/defoliation of plants.