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    Process for the preparation of 5-chloro-2-toluidine
    2.
    发明授权
    Process for the preparation of 5-chloro-2-toluidine 失效
    5-氯-2-甲苯胺制备方法

    公开(公告)号：US3962336A

    公开(公告)日：1976-06-08

    申请号：US461453

    申请日：1974-04-16

    申请人： Rudolf Lademann ,  Franz Landauer

    发明人： Rudolf Lademann ,  Franz Landauer

    IPC分类号： C07C211/52 ,  C07C20060101 ,  C07C67/00 ,  C07C209/00 ,  C07C85/24

    CPC分类号： C07C209/74

    摘要： The hydrochloride of 5-chloro-2-toluidine is obtained by dispersing 2-toluidine hydrochloride in a halohydrocarbon and reacting it with chlorine. No isomers are formed and very little higher chlorinated products. 5-chloro-2-toluidine is easily set free from the hydrochloride with aqueous bases.

    摘要翻译： 通过将2-甲苯胺盐酸盐分散在卤代烃中并与氯反应，得到5-氯-2-甲苯胺的盐酸盐。 没有形成异构体，氯化产物几乎没有。 用水性碱容易地将5-氯-2-甲苯胺与盐酸盐无关。

    Continuous process for preparing derivatives of benzene with fluorinated side chains from the corresponding chlorine compounds
    3.
    发明授权
    Continuous process for preparing derivatives of benzene with fluorinated side chains from the corresponding chlorine compounds 失效
    用相应的氯化合物制备具有氟化侧链的苯衍生物的连续方法

    公开(公告)号：US3966832A

    公开(公告)日：1976-06-29

    申请号：US521894

    申请日：1974-11-07

    申请人： Rudolf Lademann ,  Helmut Lindner ,  Thomas Martini ,  Peter Paul Rammelt

    发明人： Rudolf Lademann ,  Helmut Lindner ,  Thomas Martini ,  Peter Paul Rammelt

    IPC分类号： C07C17/00 ,  C07C17/20 ,  C07C22/08 ,  C07C51/62 ,  C07C63/70 ,  C07C67/00 ,  G03F7/038 ,  C07C25/14

    CPC分类号： C07C17/206 ,  C07C51/60 ,  C07C51/62 ,  C07C51/64

    摘要： Preparation of derivatives of benzene containing CF.sub.3 groups from the corresponding compounds containing CCl.sub.3 groups (e.g. trichloromethyl benzene) is carried out continuously with excellent yield rates by reaction with liquid hydrogen fluoride in an autoclave above 80.degree.C, (which latter exceeds the stoichiometric proportion by at least 25 mole %). The reactants are fed continuously into the autoclave. The reaction mixture preferably becomes pressurized to at least 20 atmospheres and homogeneous after having reached a certain filling level. The reaction mixture is thereafter withdrawn proportionally to its feeding-in rate. The mixture may be conveyed through one or several additional autoclaves with the final withdrawal of the reaction mixture being out from the terminal autoclave of this cascade. The fluorination products are well known starting and inermediate products for the preparation of dyestuffs and pesticidal compositions.

    摘要翻译： 通过与高于80℃的高压釜中的液体氟化氢反应（其后者超过化学计量比例）通过与高于80℃的高压釜反应而以优异的产率连续进行来自相应的含有CCl 3基团的化合物（例如三氯甲基苯）的含CF 3基团的苯衍生物 至少25摩尔％）。 反应物连续进料到高压釜中。 反应混合物优选在达到一定的填充水平之后被加压至至少20个大气压并均匀。 然后将反应混合物与其进料速率成比例地取出。 混合物可以通过一个或几个另外的高压釜输送，反应混合物最终从该级联的终端高压釜中排出。 氟化产物是众所周知的用于制备染料和杀虫组合物的起始和中间产物。