Process for preparing dialkyl dicarbonates
    3.
    发明授权
    Process for preparing dialkyl dicarbonates 有权
    制备二碳酸二烷基酯的方法

    公开(公告)号:US07420076B2

    公开(公告)日:2008-09-02

    申请号:US11596026

    申请日:2005-04-30

    IPC分类号: C07C69/96 C07C51/56

    CPC分类号: C07C68/02 C07C69/96

    摘要: The novel process for preparing dialkyl dicarbonates by reacting the corresponding alkyl haloformates with alkali metal hydroxides, alkaline earth metal hydroxides and/or carbonates in the presence of water-immiscible organic solvents and in the presence of a catalyst is characterized in that the catalyst used is at least one tertiary alkylamine of the formula (I) NR1R2R3,  (I) where the substituents are each as defined in the description.

    摘要翻译: 在与水不混溶的有机溶剂的存在下和在催化剂存在下,通过使相应的卤代甲酸烷基酯与碱金属氢氧化物,碱土金属氢氧化物和/或碳酸盐反应来制备二碳酸二烷基酯的新方法的特征在于所用的催化剂是 至少一种式(I)的叔烷基胺<?in-line-formula description =“In-line formula”end =“lead”?> NR 1 R 2 SUP / 取代基各自如说明书中所定义,其中取代基各自如在说明书中所定义。

    Process For Preparing Dialkyl Dicarbonates
    7.
    发明申请
    Process For Preparing Dialkyl Dicarbonates 有权
    制备二烷基碳酸氢盐的方法

    公开(公告)号:US20070213552A1

    公开(公告)日:2007-09-13

    申请号:US11596026

    申请日:2005-04-30

    IPC分类号: C07C69/96

    CPC分类号: C07C68/02 C07C69/96

    摘要: The novel process for preparing dialkyl dicarbonates by reacting the corresponding alkyl haloformates with alkali metal hydroxides, alkaline earth metal hydroxides and/or carbonates in the presence of water-immiscible organic solvents and in the presence of a catalyst is characterized in that the catalyst used is at least one tertiary alkylamine of the formula (I) NR1R2R3   (I), where the substituents are each as defined in the description.

    摘要翻译: 在与水不混溶的有机溶剂的存在下和在催化剂存在下,通过使相应的卤代甲酸烷基酯与碱金属氢氧化物,碱土金属氢氧化物和/或碳酸盐反应来制备二碳酸二烷基酯的新方法的特征在于所用的催化剂是 至少一种式(I)的叔烷基胺<?in-line-formula description =“In-line formula”end =“lead”?> NR 1 R 2 SUP / 取代基各自如说明书中所定义。其中取代基各自如在说明书中所定义。