Herbicidal tetrahydropyran-2,4-diones

Details Herbicidal tetrahydropyran-2,4-diones Herbicidal tetrahydropyran-2,4-diones

C - Chemistry, Metallurgy

07

D

260/300

C07D 405/04 (2006.01) A01N 43/00 (2006.01) A01N 43/16 (2006.01) A01N 43/36 (2006.01) A01N 43/50 (2006.01) A01N 43/56 (2006.01) A01N 43/78 (2006.01) A01N 43/80 (2006.01) C07D 407/04 (2006.01) C07D 409/00 (2006.01) C07D 409/04 (2006.01) C07D 413/04 (2006.01) C07D 413/14 (2006.01) C07D 417/04 (2006.01)

Patent

CA 1336836

Tetrahydropyran-2,4-diones of the formula Image I where R1 is hydrogen; C1-C6-alkyl; C2-C6-alkenyl; C2-C6-alkynyl; substituted or unsubstituted phenyl; C1-C6-alkylsulfonyl; substituted or unsubstituted benzenesulfonyl; C3-C6-alkenylcarbonyl; or substituted or unsubstituted benzoyl; R2 is C1-C6-alkyl; C2-C6-alkenyl; C2-C6-alkynyl; C1-C6-haloalkyl; or C3-C6-cycloalkyl; A, B and D are each =CH- or =N-; E is oxygen, sulfur or -NR7-; R7 is hydrogen; C1-C6-alkyl; C2-C6-alkenyl; C2-C6-alkanoyl; substituted or unsubstituted benzoyl; benzyl; or substituted or unsubstituted phenyl; X is halogen; C1-C6-alkyl; substituted or unsubstituted C3-C6-cycloalkyl; C2-C6-alkenyl; C2-C6-alkynyl; C1-C6-alkoxy; C2-C6-alkenyloxy; C1-C6-alkylthio; C1-C6-alkoxycarbonyl; C2-C6-alkanoyloxy; substituted or unsubstituted benzyloxy; substituted or unsubstituted NR5R6; formyl; C2-C6-alkanoyl or its imine, oxime or Schiff's base; or substituted or unsubstituted phenyl; n is 0, 1 or 2; R3, R4, R5 and R6 are each hydrogen, C1-C6-alkyl, phenyl, C2-C6-alkanoyl, benzoyl and/or benzyl; Z is oxygen or -NOR8; and R8 is substituted or unsubstituted C1-C6-alkyl; C2-C6-alkenyl; C2-C6-alkynyl; C2-C6-haloalkynyl; or substituted or unsubstituted thenyl; their environmentally compatible salts, and agents containing them. These compounds are useful as herbicides and growth regulaters.

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