PROCESS FOR THE PREPARATION OF 5-BROMO-1,2,3-TRICHLOROBENZENE
    21.
    发明申请
    PROCESS FOR THE PREPARATION OF 5-BROMO-1,2,3-TRICHLOROBENZENE 审中-公开
    制备5-溴-1,2,3-三氯苯腈的方法

    公开(公告)号:WO2016058897A1

    公开(公告)日:2016-04-21

    申请号:PCT/EP2015/073219

    申请日:2015-10-08

    发明人: SMITS, Helmars

    摘要: The present invention relates to a process for the preparation of a compound of formula I (I), comprising reacting a compound of formula II (II), with a brominating agent in the presence of an acidic catalyst to a compound of formula III (III), and reacting the compound of formula III in tetrahydrofuran or 2-methyl-tetrahydrofuran with potassium tert-butoxide to a compound of formula I.

    摘要翻译: 本发明涉及一种制备式I(I)化合物的方法,包括使式II(II)化合物与溴化剂在酸性催化剂存在下反应于式III(III)化合物 ),并使式III化合物在四氢呋喃或2-甲基 - 四氢呋喃中与叔丁醇钾与式I化合物反应。

    PROCESS FOR INCREASING PURITY OF SOLID BROMINATED FLAME RETARDANTS DURING PREPARATION
    26.
    发明申请
    PROCESS FOR INCREASING PURITY OF SOLID BROMINATED FLAME RETARDANTS DURING PREPARATION 审中-公开
    在制备过程中增加固体火焰阻燃剂的含量的方法

    公开(公告)号:WO2009076056A1

    公开(公告)日:2009-06-18

    申请号:PCT/US2008/084546

    申请日:2008-11-24

    摘要: Processes for preparing brominated aromatic flame retardant having a reduced content of occluded free bromine are described. The processes comprise subdividing, during bromination of an aromatic compound, solid particles that form in a bromination reaction mixture in which an excess of liquid bromine and a Lewis acid bromination catalyst are present, said subdividing taking place within the confines of said reaction mixture. Subdivision is effected by grinding, milling, or sonication.

    摘要翻译: 描述了制备具有降低的阻塞游离溴含量的溴化芳族阻燃剂的方法。 这些方法包括在溴化芳族化合物的过程中,在存在过量的液态溴和路易斯酸溴化催化剂的溴化反应混合物中形成固体颗粒,所述细分发生在所述反应混合物的范围内。 通过研磨,研磨或超声处理实现细分。

    PREPARATION AND PROVISION OF HIGH ASSAY DECABROMODIPHENYLETHANE
    28.
    发明申请
    PREPARATION AND PROVISION OF HIGH ASSAY DECABROMODIPHENYLETHANE 审中-公开
    高分析十溴二苯醚的制备与提供

    公开(公告)号:WO2008115261A1

    公开(公告)日:2008-09-25

    申请号:PCT/US2007/076183

    申请日:2007-08-17

    IPC分类号: C07C17/12 C07C25/18 C08K5/03

    摘要: High assay, reaction-derived decabromodiphenylethane product is prepared by feeding (i) diphenylethane or (ii) partially brominated diphenylethane having an average bromine number less than about two, or (iii) both of (i) and (ii), into the liquid confines of a reaction mixture. Such reaction mixture is (a) formed from components comprised of excess liquid bromine and aluminum-based Lewis acid bromination catalyst, and (b) maintained at one or more elevated reaction temperatures of from about 45°-90°C, and at least when elevated pressure is needed to keep a liquid state in the reaction mixture at the temperature(s) used, the reaction mixture is at such an elevated pressure, whereby arbromination occurs. The feeding is conducted at a rate slow enough to form high assay reaction-derived decabromodiphenylethane product, which is an effective flame retardant.

    摘要翻译: 通过将(i)二苯基乙烷或(ii)平均溴数小于约2的部分溴化二苯基乙烷或(iii)(i)和(ii)两者的部分溴化二苯基乙烷进料到液体中来制备高分离反应衍生的十溴二苯乙烷产物 反应混合物的限制。 这种反应混合物是(a)由过量的液体溴和铝基路易斯酸溴化催化剂组成的组分形成的,和(b)保持在一个或多个升高的​​反应温度为约45℃-90℃, 需要提高压力以在所用温度下保持反应混合物中的液体状态,反应混合物处于如此高的压力下,由此发生溴化。 以足够慢的速度进行进料以形成高分析反应衍生的十溴二苯乙烷产物,其是有效的阻燃剂。