PHENOXYACETIC ACID DERIVATIVES, INTERMEDIATES, PREPARATION AND USE AS HERBICIDES THEREOF

摘要

Phenoxyacetic acid derivatives of formula (I) and their salts and geometric isomers are new: R1, R2 = H, lower alkyl, lower alkenyl, lower alkynyl or cycloalkyl (all optionally substituted) or CmH2m (optionally substituted phenyl); X = halo, CN, lower alkoxycarbonyl, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, lower alkoxy, lower alkylthio, lower alkylsulphinyl, lower alkylsulphonyl, lower haloalkoxycarbonyl, lower haloalkyl, lower haloalkenyl, lower haloalkynyl, halocycloalkyl, lower haloalkoxy, lower haloalkylthio, lower haloalkylsulphinyl, lower haloalkylsulphonyl, NO2, NH2, lower alkylamino, lower dialkylamino, optionally substituted phenoxy, lower alkylcarbonylamino, carbamoyl, lower alkylcarbamoyl, lower dialkylcarbamoyl or SF5; n, m = 0-2; A = halo, OH or A1; A1 = OR3, S(O)kR3, ON=CR4R5 or OCR4=NR5; R3 = lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, phenyl, heteroaryl, lower alkylcarbonyl, lower alkenylcarbonyl, lower alkynylcarbonyl, cycloalkylcarbonyl, phenylcarbonyl, heteroarylcarbonyl, cycloalkenyl, or cycloalkenylcarbonyl (all optionally substituted); CpH2p (optionally substituted phenyl), CqH2q (optionally substituted heteroaryl), (CrH2r)CO2 alkyl, (CsH2s)-cycloalkyl, CO(CtH2t)Y, (CuH2u)COCH2 (optionally substituted phenyl), (CfH2f)O (optionally substituted phenyl), (CgH2g)s (optionally substituted phenyl) or (CjH2j)O(CzH2z) (optionally substituted phenyl); k = 0-2; f, g, j, z, p-u = 1 or 2; Y = phenyl, phenoxy, heteroaryl, phenylthio or heteroaryloxy (all optionally substituted) or alkoxy; R4 = H, CN or lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, phenyl or heteroaryl (all optionally substituted); R5 = lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, phenyl, lower alkoxy, lower alkenyloxy, lower alkynyloxy, cycloalkyloxy, heteroaryloxy, cycloalkenyloxy or heteroaryl (all optionally substituted); CvH2v (optionally substituted phenyl), OCwH2w (optionally substituted phenyl), (CxH2x)O (optionally substituted phenyl), optionally substituted lower alkylthio, optionally substituted phenylthio, SCyH2y (optionally substituted phenyl) or optionally substituted phenoxy; and v-y = 1 or 2.