Process for the preparation of pure aryllithium compounds and their use
    1.
    发明授权
    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:US07794632B2

    公开(公告)日:2010-09-14

    申请号:US11725614

    申请日:2007-03-20

    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。

    Concentrated, stable alkali alkoxide solutions
    3.
    发明授权
    Concentrated, stable alkali alkoxide solutions 有权
    浓缩稳定的碱性醇盐溶液

    公开(公告)号:US06646169B1

    公开(公告)日:2003-11-11

    申请号:US10111829

    申请日:2002-07-10

    IPC分类号: C07C3130

    CPC分类号: C07C31/30

    摘要: Concentrated, stable solutions of alkali metal alkoxides ROM, which consist of an alkali metal cation and a secondary or tertiary alcohol residue, in aprotic solvents are described, wherein, relative to alkoxide content, the solutions contain at least 1.0 and at most 15 mol % of alkali metal hydroxide M′OH and at most 1.0 mol % of free alcohol R—OH, wherein R is a secondary or tertiary alkyl residue and wherein M and M′ are mutually independently Li, Na, K, Rb or Cs. A process for the production of the solution and the use thereof are also described.

    摘要翻译: 描述了在非质子溶剂中由碱金属阳离子和仲或叔醇残基组成的碱金属醇盐ROM的浓缩稳定溶液,其中相对于醇盐含量,溶液含有至少1.0和至多15摩尔% 的碱金属氢氧化物M'OH和至多1.0摩尔%的游离醇R-OH,其中R是仲或叔烷基残基,其中M和M'彼此独立地是Li,Na,K,Rb或Cs。 还描述了用于生产溶液的方法及其用途。

    Composition for use in organolithium synthesis reactions
    4.
    发明授权
    Composition for use in organolithium synthesis reactions 失效
    用于有机锂合成反应的组合物

    公开(公告)号:US4982017A

    公开(公告)日:1991-01-01

    申请号:US346868

    申请日:1989-05-03

    CPC分类号: C07F1/02

    摘要: A composition for use in synthesis reactions comprises a mixture of an organolithium compound and an inert inorganic pulverulent carrier and consists of methyllithium and ethyllithium, one or more of the group consisting of SiO.sub.2, Al.sub.2 O.sub.3, CaO and synthetic anhydrous aluminosilicate, and paraffin. That composition is flowable and non-pyrophoric.

    摘要翻译: 用于合成反应的组合物包括有机锂化合物和惰性无机粉状载体的混合物,由甲基锂和乙基锂组成,一种或多种由SiO 2,Al 2 O 3,CaO和合成的无水硅铝酸盐组成的组和石蜡组成。 该组合物是可流动的和非自燃的。

    Process for producing alkali metals in elemental form
    5.
    发明授权
    Process for producing alkali metals in elemental form 失效
    以元素形式生产碱金属的方法

    公开(公告)号:US4725311A

    公开(公告)日:1988-02-16

    申请号:US43160

    申请日:1987-04-27

    IPC分类号: C01F5/04 C22B3/46 C22B26/10

    CPC分类号: C22B3/46 C22B26/10 Y02P10/234

    摘要: A process of producing alkali metal by a reduction of alkali metal compounds with metallic reducing agents, which is simplified and avoids corrosion of the reaction vessel and part thereof in that the reduction is effected with particulate magnesium in an organic solvent which under the conditions of the process is inert to the alkali metal to be produced. The reaction is effected at temperatures from 100.degree. to 300.degree. C. In an embodiment of the process the reduction is effected in the presence of an alcohol used as a reaction accelerator.

    摘要翻译: 通过用金属还原剂还原碱金属化合物来制备碱金属的方法,其被简化并避免了反应容器及其部分的腐蚀,因为在有机溶剂中的颗粒状镁进行还原,在有机溶剂的条件下, 方法对待生产的碱金属是惰性的。 该反应在100℃至300℃的温度下进行。在该方法的一个实施方案中,在用作反应促进剂的醇存在下还原。