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    Process for the production of a carbodiimide
    8.
    发明授权
    Process for the production of a carbodiimide 有权
    碳二亚胺生产工艺

    公开(公告)号：US09428521B2

    公开(公告)日：2016-08-30

    申请号：US13704117

    申请日：2011-06-15

    申请人： Kenji Suzuki ,  Tsukasa Kato ,  Tsutomu Yamada ,  Yuya Kamada ,  Shinichiro Shoji

    发明人： Kenji Suzuki ,  Tsukasa Kato ,  Tsutomu Yamada ,  Yuya Kamada ,  Shinichiro Shoji

    IPC分类号： C07D498/10 ,  B01J31/02

    CPC分类号： C07D498/10 ,  B01J31/0239 ,  B01J2231/40

    摘要： A process for the production of a carbodiimide, comprising the steps of: (1) reacting an amine represented by the following formula (A) with carbon disulfide in the presence of a catalyst at a reaction temperature of 50 to 150° C. to obtain a thiourea represented by the following formula (B): (In the above formula (A), R is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.) (In the above formula (B), R is as defined in the above formula (A); (2) desulfurizing the obtained thiourea with a hypochlorite in the presence of a basic compound to obtain a carbodiimide represented by the following formula (C): (In the above formula (C), R is as defined in the above formula (A)); and (3) purifying the obtained carbodiimide.

    摘要翻译： 一种制备碳二亚胺的方法，包括以下步骤：（1）在催化剂存在下，在50-150℃的反应温度下使下式（A）表示的胺与二硫化碳反应，得到 由下式（B）表示的硫脲：（在上式（A）中，R是氢原子或碳原子数1〜6的烷基）（上式（B）中，R定义如上） 在上述式（A）中，（2）在碱性化合物的存在下用次氯酸盐脱硫得到的硫脲，得到下述式（C）表示的碳二亚胺：（在上述式（C）中，R为 在上述式（A）中定义）;和（3）纯化得到的碳二亚胺。