[EN] 2,3-DIHYDRO-4-OXO-4H-1,3-OXAZINE AND 2-OXO-1,2,5,6-TETRAHYDROPYRIDINE DERIVATIVES AND THEIR USE AS HERBICIDES<br/>[FR] DERIVES DE 2,3-DIHYDRO-4-OXO-4H-1,3-OXAZINE ET DE 2-OXO-1,2,5,6-TETRAHYDROPYRIDINE ET LEUR UTILISATION COMME HERBICIDES
申请人:AVENTIS CROPSCIENCE SA
公开号:WO2000024722A1
公开(公告)日:2000-05-04
The invention relates to compounds of formula (I), wherein X represents -S(O)v-, an oxygen atom or -NR12; Y represents -O- or -CH2-; R1 represents phenyl, benzyl or thienyl optionally substituted by one to five groups which may be the same or different selected from halogen, hydroxy, alkyl, haloalkyl, alkoxy, haloalkoxy, -S(O)¿n?R?6, -CO¿2R?6, -COR6¿, cyano, nitro, -O(CH¿2?)q-CO2R?6¿ and phenoxy; or alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, haloalkynyl or cycloalkyl; R2 represents hydrogen, alkyl, haloalkyl, alkoxyalkyl, haloalkoxyalkyl, alkenyl, haloalkenyl, alkynyl, haloalkynyl, alkoxyalkenyl, -CHO, -COR6, -CO2R6, -CH2NO2, cyano, -CO2H, -COSR?6, -CONR7R8¿, -CH=NOH, -CH=NOR6, -CH=NOCOR6, -CH=NNR?7R8, -CH¿2CN, -CH2NO2 or oxiranyl; or alkyl which is substituted by a group selected from -S(O)nR6, OH, -OCOR?6, -NR7R8¿ and azido; R3 represents CONHR?9, COR10; CO¿2R11; or phenyl optionally substituted by one to five groups which may be the same or different selected from halogen, hydroxy, alkyl, haloalkyl, alkoxy, haloalkoxy, -S(O)¿n?R?6, -CO¿2R?6, -COR6¿, cyano, nitro, -O(CH¿2?)q-CO2R?6¿ and phenoxy; R?4 and R5¿ independently represent alkyl; and to their use as herbicides.