Preparation of fluorophthalic anhydrides
    24.
    发明授权
    Preparation of fluorophthalic anhydrides 失效
    氟代邻苯二甲酸酐的制备

    公开(公告)号:US4514572A

    公开(公告)日:1985-04-30

    申请号:US572949

    申请日:1984-01-23

    IPC分类号: C07C51/567 C07D307/89

    CPC分类号: C07C51/567 C07D307/89

    摘要: Fluorophthalic anhydrides containing 1 or 2 fluorine atoms are prepared by a process in which a chlorophthalic anhydride containing 1 or 2 chlorine atoms is treated with an acid chloride of sulfurous acid or of carbonic acid in the presence of an aliphatic sulfone, and the reaction mixture is then reacted with potassium fluoride.

    摘要翻译: 含有1或2个氟原子的氟代邻苯二甲酸酐通过在脂族砜存在下用亚硫酸或碳酸的酰氯处理含有1或2个氯原子的氯代邻苯二甲酸酐的方法制备,反应混合物为 然后与氟化钾反应。

    Herbicides containing 3-aryl-5-methylpyrazole-4-carboxylic acid esters,
their manufacture and use
    25.
    发明授权
    Herbicides containing 3-aryl-5-methylpyrazole-4-carboxylic acid esters, their manufacture and use 失效
    含有3-芳基-5-甲基吡唑-4-羧酸酯的除草剂,其制造和应用

    公开(公告)号:US4496391A

    公开(公告)日:1985-01-29

    申请号:US459988

    申请日:1983-01-21

    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- or 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或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。