Herbicidal aryloxy phenoxy acyl malonates
    1.
    发明授权
    Herbicidal aryloxy phenoxy acyl malonates 失效
    除草芳氧基苯氧基酰基丙二酸酯

    公开(公告)号:US4765825A

    公开(公告)日:1988-08-23

    申请号:US910892

    申请日:1986-09-23

    摘要: The invention relates to new aryloxy phenoxy acyl malonates of the general Formula I ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same.In the general Formula IR.sup.1 stands for hydrogen, halogen, trifluoromethyl, trifluoromethoxy or cyano;R.sup.2 represents hydrogen, halogen or methyl;R.sup.3 is C.sub.1-4 alkyl; and the R.sup.3 substituents may be the same or different,X stands for --N.dbd. or --CH.dbd. andn is 0 or 1.The compounds of the general Formula I may be prepared by reacting a compound of the general Formula II ##STR2## with a metal derivative of a malonate of the general Formula III ##STR3## or in the presence of a metal compound with a malonate of the general Formula III; or reacting a compound of the general Formula IV ##STR4## with a compound of the general Formula V; ##STR5## or reacting a compound of the general Formula VI ##STR6## with a compound of the general Formula VII ##STR7## (in which Formulae R.sup.1, R.sup.2, R.sup.3, X and n are as stated above; Y stands for halogen, cyano or alkylcarbonyloxy; Z represents halogen; and if Q is hydroxy or alkali metal oxy, P stands for halogen, or if Q stands for halogen P represents hydroxy or alkali metal oxy).The new compounds of the general Formula I possess valuable herbicidal properties.

    摘要翻译: 本发明涉及通式Ⅰ的新的芳氧基苯氧基酰基丙二酸酯,其制备方法和包含其的除草组合物。 在通式Ⅰ中,R1代表氢,卤素,三氟甲基,三氟甲氧基或氰基; R2代表氢,卤素或甲基; R3是C1-4烷基; 并且R 3取代基可以相同或不同,X代表-N =或-CH =且n为0或1.通式I的化合物可以通过使通式II的化合物 (II)与通式III的丙二酸金属衍生物(III)或在具有通式III的丙二酸酯的金属化合物的存在下反应; 或使通式IV的化合物(IV)与通式V的化合物反应; (V)化合物或使通式VI的化合物(VI)与通式VII的化合物VII(其中式R1,R2,R3,X和n如上所述)反应 Y代表卤素,氰基或烷基羰基氧基; Z代表卤素;如果Q是羟基或碱金属氧,P代表卤素,或者如果Q代表卤素,则P代表羟基或碱金属氧)。 通式I的新化合物具有有价值的除草性质。