Herbicidal 3-(2-benzyloxyphenyl)-2,4-dihydroxy-1,8-naphthyridine derivatives

摘要

The present invention relates to herbicidal benzyloxy-substituted phenyl-diones and phenyl-dioxo-thiazinones of formula (I), as well as to herbicidal compositions comprising such compounds, and to the use of such compounds or compositions in controlling undesirable plant growth, in particular in controlling weeds, such as broad-leaved dicotyledonous weeds, in crops of useful plants. Formula (I), or a salt or N-oxide thereof, wherein A1 is N or CR1; A3 is C(O) or S(O)2; G is hydrogen or C(O)R6; R1, R3, X and Y are i.a. hydrogen, alkyl or haloalkyl; n is 0-5; each Z is i.a. alkyl, haloalkyl or alkoxy; and R6 is i.a. alkyl, alkenyl or alkynyl.;

主权项

1. A compound of formula (I)or a salt or N-oxide thereof,
wherein A1 is N or CR1; R1 is hydrogen, C1-C4alkyl, C1-C3haloalkyl, C1-C4alkoxy, C1-C4alkylthio, halogen, cyano, hydroxyl, or phenyl optionally substituted by one to five R4 which may be the same or different; A3 is C(O) or S(O)2; G is hydrogen, or C(O)R6; X and Y are each independently hydrogen, C1-C3 alkyl, C1-C3 alkoxy, C1-C3haloalkyl, C1-C3haloalkoxy, or halogen; n is an integer of 0, 1, 2, 3, 4, or 5; each Z is independently C1-C3 alkyl, C1-C3 alkoxy, C1-C3haloalkyl, C1-C3haloalkoxy, or halogen; R3 is hydrogen, C1-C10alkyl, C1-C4haloalkyl, C2-C10alkenyl, C2-C4haloalkenyl, C2-C10alkynyl, C2-C4haloalkynyl, C3-C10cycloalkyl, C3-C10cycloalkyl-C1-C6alkyl-, C1-C10alkoxy-C1-C6alkyl-, C1-C10cyanoalkyl-, C1-C10alkoxycarbonyl-C1-C6alkyl-, N-C1-C3alkyl-aminocarbonyl-C1-C6alkyl-, N,N-di-(C1-C3alkyl)-aminocarbonyl-C1-C6alkyl-, aryl-C1C6alkyl- or aryl-C1-C6alkyl- wherein the aryl moiety is substituted by one to three R10, which may be the same or different, or heterocyclyl-C1-C6alkyl- or heterocyclyl-C1-C6alkyl- wherein the heterocyclyl moiety is substituted by one to three R10, which may be the same or different; each R4 is independently halo, cyano, nitro, C1-C10alkyl, C1-C4haloalkyl, C2-C10alkenyl, C2-C10alkynyl, hydroxy, C1-C10alkoxy, C1-C4haloalkoxy, C1-C10alkoxy-C1-C4alkyl-, C3-C7cycloalkyl, C3-C7cycloalkoxy, C3-C7cycloalkyl-C1-C4alkyl-, C3-C7cycloalkyl-C1-C4alkoxy-, C1-C6alkylcarbonyl-, formyl, C1-C4alkoxycarbonyl-, C1-C4alkylcarbonyloxy-, C1-C10alkylthio-, C1-C4haloalkylthio-, C1-C10alkylsulfinyl-, C1-C4haloalkylsulfinyl-, C1-C10alkylsulfonyl-, C1-C4haloalkylsulfonyl-, amino, C1-C10alkylamino-, di-C1-C10alkylamino-, or C1-C10alkylcarbonylamino-; R6 is selected from the group consisting of C1-C6alkyl, C1-C6alkenyl, C1-C6alkynyl, C1-C6alkyl-S—, —NR7R8 and phenyl optionally substituted by one or more R9; R7 and R8 are independently selected from the group consisting of C1-C6 alkyl and C1-C6 alkoxy, or R7 and R8 together can form a morpholinyl ring; and, R9 is selected from the group consisting of halogen, cyano, nitro, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy and C1-C3haloalkoxy; and each R10 is independently halo, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy or C1-C4haloalkoxy.