Process for the production of bis (N,N-dialkylaminoalkyl) ether
    4.
    发明授权
    Process for the production of bis (N,N-dialkylaminoalkyl) ether 失效
    制备双(N,N-二烷基氨基烷基)醚的方法

    公开(公告)号:US6150559A

    公开(公告)日:2000-11-21

    申请号:US431912

    申请日:1999-11-02

    CPC分类号: C07C213/06

    摘要: An improved process for the production of bis (N,N-dialkylaminoalkyl)ether having the formula (R.sub.2 NR').sub.2 O, wherein R is methyl or ethyl and R' is ethyl or propyl, by reacting vaporized N,N-dialkylaminoalkanol of the formula R.sub.2 NR'OH, wherein R and R' are as defined above, in the presence of a heterogeneous solid basic catalyst. The bis (N,N-dialkylaminoalkyl)ether compounds, especially bis (N,N-dimethylamino)ethyl ether, are useful in the production of polyurethane foams.

    摘要翻译: 制备式(R2NR')2O的双(N,N-二烷基氨基烷基)醚的改进方法,其中R是甲基或乙基,R'是乙基或丙基,通过使式 R2NR'OH,其中R和R'如上定义,在非均相固体碱性催化剂存在下。 双(N,N-二烷基氨基烷基)醚化合物,特别是双(N,N-二甲基氨基)乙醚,可用于生产聚氨酯泡沫体。

    Process for the production of triethylenediamine
    5.
    发明授权
    Process for the production of triethylenediamine 失效
    三亚乙基二胺生产工艺

    公开(公告)号:US5756741A

    公开(公告)日:1998-05-26

    申请号:US751142

    申请日:1996-11-15

    CPC分类号: C07D487/08

    摘要: A process for preparing triethylenediamine by passing an amine compound over a catalyst at elevated temperature to afford a reaction product containing triethylenediamine and piperazine, the amine compound having, in the molecule, a moiety represented by the following general formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and X is oxygen or nitrogen characterized by adding an ethylating compound containing at least one nitrogen and/or oxygen atom to the reaction product and contacting the reaction product, under conditions sufficient to produce triethylenediamine from the ethylating compound and piperazine, with a condensation/cyclization shape-selective zeolite catalyst demonstrating a triethylenediamine/piperazine weight ratio uptake value of at least 6:1.

    摘要翻译: 一种通过使胺化合物在升高的温度下通过催化剂制备三亚乙基二胺的方法,得到含有三亚乙基二胺和哌嗪的反应产物,所述胺化合物在分子中具有由以下通式表示的部分,其中R1,R2 R 3和R 4独立地是氢原子或具有1至4个碳原子的烷基,X是氧或氮,其特征在于向反应产物中加入含有至少一个氮原子和/或氧原子的乙基化合物,并使反应产物 在足以从乙基化合物和哌嗪产生三亚乙基二胺的条件下,使用缩合/环化形状选择性沸石催化剂,证明三亚乙基二胺/哌嗪的重量比吸收值至少为6:1。