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    1,3-OXAZIN-4-ONE DERIVATES AS HERBICIDES, PROCESS AND INTERMEDIATES FOR THEIR PREPARATION
    1.
    发明公开
    1,3-OXAZIN-4-ONE DERIVATES AS HERBICIDES, PROCESS AND INTERMEDIATES FOR THEIR PREPARATION 失效
    1.3恶嗪-4-酮衍生物除草剂，过程和中间产品及其

    公开(公告)号：EP0900216A1

    公开(公告)日：1999-03-10

    申请号：EP97916451.0

    申请日：1997-04-08

    申请人： RHONE-POULENC AGRICULTURE LTD. ,  MITSUBISHI CHEMICAL CORPORATION

    发明人： HAYASHIZAKI, Keiichi ,  USUI, Yoshihiro ,  WHITE, Catherine, Jacqueline

    IPC分类号： A01N43 ,  C07D265 ,  C07D413 ,  C07F7

    CPC分类号： C07D413/04 ,  A01N43/86 ,  C07D265/06

    摘要： 1,3-oxazin-4-ones of formula (I) wherein W represents -NR6; R1 represents thiophene optionally substituted by one to three groups which may be the same or different selected from halogen, hydroxy, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, -S(O)¿n?R?7, -CO¿2R7, COR7, cyano, nitro and phenoxy; R2 represents hydrogen, lower alkyl, lower haloalkyl, alkoxyalkyl, lower alkenyl, lower haloalkenyl, alkoxyalkenyl, -CHO, -COR7, -CO2R7, -CH2NO2, and lower alkyl which is substituted by a group selected from -S(O)mR7 and -OCOR7; R3 represents phenyl optionally substituted by one to five groups which may be the same or different selected from halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, -S(O)¿n?R?7, -CO¿2R7,-COR7, cyano, nitro, -OH, phenoxy, -NR8R9 and -SF¿5?; or a cycloalkyl group containing from three to six carbon atoms, optionally substituted by lower alkyl, lower haloalkyl or one or more halogen atoms which may be the same or different; R?4 and R5¿ independently represent lower alkyl; and their use as herbicides.