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14 条记录 (耗时 0.011 秒)

    Process for the preparation of pure aryllithium compounds and their use
    1.
    发明申请
    Process for the preparation of pure aryllithium compounds and their use 有权
    纯芳基锂化合物的制备方法及其用途

    公开(公告)号：US20070187847A1

    公开(公告)日：2007-08-16

    申请号：US11725614

    申请日：2007-03-20

    申请人： Ute Emmel ,  Wilfried Weiss ,  Ulrich Wietelmann ,  Dirk Dawidowski

    发明人： Ute Emmel ,  Wilfried Weiss ,  Ulrich Wietelmann ,  Dirk Dawidowski

    IPC分类号： C07F1/02

    CPC分类号： C07F1/02

    摘要： A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.

    摘要翻译： 描述了通过在含醚溶剂中的金属锂与芳基卤化物反应来制备芳基锂化合物的方法，其中在反应之前或开始时加入催化剂，所述催化剂含有无卤素的多核芳族（ 芳基催化剂）或由这种化合物组成。

    Method for preparing lithium amide
    2.
    发明授权
    Method for preparing lithium amide 失效
    制备氨基化锂的方法

    公开(公告)号：US06756024B2

    公开(公告)日：2004-06-29

    申请号：US10091383

    申请日：2002-03-05

    申请人： Wilfried Weiss ,  Dirk Dawidowski

    发明人： Wilfried Weiss ,  Dirk Dawidowski

    IPC分类号： C01B2100

    CPC分类号： C01B21/0926

    摘要： A method for preparing lithium amide is described in which in a first method step lithium metal is reacted with ammonia to form lithium bronze and in a second method step the lithium bronze is reacted with a 1,3-diene or an arylolefin in the presence of a solvent.

    摘要翻译： 描述了一种制备氨基化锂的方法，其中在第一种方法步骤中，使锂金属与氨反应形成青铜青铜，并且在第二种方法步骤中，将青铜与1,3-二烯或芳基烯烃在 溶剂。

    Method for producing alkyl lithium compounds and aryl lithium compounds by monitoring the reaction by means of ir-spectroscopy
    8.
    发明申请
    Method for producing alkyl lithium compounds and aryl lithium compounds by monitoring the reaction by means of ir-spectroscopy 审中-公开
    通过红外光谱法监测反应生产烷基锂化合物和芳基锂化合物的方法

    公开(公告)号：US20070152354A1

    公开(公告)日：2007-07-05

    申请号：US10589715

    申请日：2005-02-24

    申请人： Wilfried Weiss ,  Dirk Dawidowski ,  Valter Pleyer ,  Frank Kruckel

    发明人： Wilfried Weiss ,  Dirk Dawidowski ,  Valter Pleyer ,  Frank Kruckel

    IPC分类号： C07F1/00

    CPC分类号： C07F1/02

    摘要： The invention relates to a method for producing alkyl lithium compounds and aryl lithium compounds by reacting lithium metal with alkyl or aryl halogenides in a solvent, the concentration of the alkyl/aryl halogenide and the alkyl/aryl lithium compound being detected according to an in-line measurement in the reactor by means of IR spectroscopy, and an exact recognition of the end point of the dosing of the halogenide constituents being carried out by evaluation of the IR measurement. Said method enables an optimum reactive process and reaction yield. The identification of the respective concentration of the educt and the product is a reliable reactive process. The yield of the reaction is also optimised by determining the end point of the halogenide dosing, as is the purity of the product due to a lower concentration thereof during the reaction.

    摘要翻译： 本发明涉及一种通过使锂金属与烷基或芳基卤化物在溶剂中反应来制备烷基锂化合物和芳基锂化合物的方法，其中烷基/芳基卤化物和烷基/芳基锂化合物的浓度根据 通过IR光谱法在反应器中进行线路测量，并且通过IR测量的评估来确定卤化物组分的计量终点的确切识别。 所述方法能够实现最佳的反应过程和反应产率。 对各种离子浓度和产物的鉴定是可靠的反应过程。 还通过确定卤化物给药的终点来优化反应的产率，由于反应期间其浓度较低，产物的纯度也是如此。