3-Aryl-5-methylpyrazole-4-carboxylic acid esters
    9.
    发明授权
    3-Aryl-5-methylpyrazole-4-carboxylic acid esters 失效
    3-芳基-5-甲基吡唑-4-羧酸酯

    公开(公告)号:US4401821A

    公开(公告)日:1983-08-30

    申请号:US279696

    申请日:1981-07-02

    摘要: Herbicides containing a pyrazole derivative of the formula ##STR1## where R.sup.1 denotes hydrogen, formyl, acetyl, propionyl, chloroacetyl, dichloroacetyl, methoxyacetyl, methoxycarbonyl, or phenoxycarbonyl which is unsubstituted or mono- or polysubstituted by halogen, R.sup.2 denotes phenyl which is unsubstituted or mono- or polysubstituted by fluorine, chlorine, bromine, methyl, methoxy, cyano, nitro, trifluoromethyl, trifluoromethoxy or methoxycarbonyl, R.sup.2 further denotes a 5- to 6-membered, heterocyclic aromatic ring which is unsubstituted or substituted by methyl or chlorine and which contains 1 or 2 hetero-atoms X, X being independently oxygen, sulfur or nitrogen, or R.sup.2 denotes .alpha.-naphthyl or .beta.-naphthyl, and R.sup.3 denotes methyl, ethyl or isopropyl, or a salt of such a pyrazole derivative, a process for combating unwanted plant growth with the active ingredients and methods of manufacturing the herbicides.

    摘要翻译: 除草剂,其含有下式的吡唑衍生物,其中R1表示氢,甲酰基,乙酰基,丙酰基,氯乙酰基,二氯乙酰基,甲氧基乙酰基,甲氧基羰基或被卤素单取代或多取代的苯氧基羰基, 被氟,氯,溴,甲基,甲氧基,氰基,硝基,三氟甲基,三氟甲氧基或甲氧基羰基单取代或多取代,R2还表示未被取代或被甲基或氯取代的5至6元杂环芳环, 含有1或2个杂原子X,X独立地为氧,硫或氮,或R2表示α-萘基或β-萘基,R3表示甲基,乙基或异丙基,或该吡唑衍生物的盐, 用活性成分和制造除草剂的方法防治有害植物生长。