SUBSTITUTED PYRROLIDONE, THIAZOLIDONES OR OXAZOLIDONES AS HERBICIDES

摘要

Compounds of general formula (I), wherein X is O, S or CR4R5; each R?4 and R5¿ is, independently, hydrogen or C¿1?-C4 alkyl; Z is O, S or NR?4¿; n is 0 or 1; Y is O, S, NR?6 or CR4R5; R6¿ is H, OH, CHO, NR?16R17 or C¿1-C10 hydrocarbyl, 0-(C1-C10 hydrocarbyl), either of which may be substituted with one orm ore substituents chosen from OR?16, COR16, COOR16, OCOR16¿, CN, halogen, S(O)¿p?R?16, NR16R17, NO¿2, NR?16COR17, NR16CONR17R18, CONR16R17¿ or heterocyclyl; R?16, R17 and R18¿ are each, independently, hydrogen, C¿1?-C6 hydrocarbyl or C1-C6 halohydrocarbyl; p is 0, 1 or 2; alternatively: when Y is NR?6 or CR4R5¿, and: a) Z is NR4; or b) n is 0; the substituents of Y and Z or Y and R1 may together form a bridge represented by the formula -Q?1-Q2- or -Q1-Q2-Q3¿-, where Q?1, Q2 and Q3¿ each independently represent CR?12R13, =CR12¿, CO, NR14, =N, O or S; each or R?12 and R13¿ independently represents hydrogen, C¿1?-C4 alkyl, OH or halogen; R?14¿ represents hydrogen or C¿1?-C4 alkyl; W is O or S; R?1¿ is hydrogen or C¿1?-C10 hydrocarbyl or heterocyclyl having 3 to 8 ring atoms; R?2 and R3¿ are each independently hydrogen or C¿1?-C4 alkyl; A is an aromatic or heteroaromatic ring system optionally substituted alternatively, two or more substituents of the group A may combine to form a fused 5- or 6-membered saturated or partially saturated carbocyclic or heterocyclic ring in which any carbon or quaternised nitrogen atom may be substituted with any of the groups mentioned above for A or in which a ring carbon atom may be part of a carbonyl group or a nitrogen atom may be oxidised.