Method for preparing polyazacycloalkanes grafted on silica gel and use of grafted compounds
    2.
    发明授权
    Method for preparing polyazacycloalkanes grafted on silica gel and use of grafted compounds 失效
    制备接枝在硅胶上的多氮杂环烷烃和使用接枝化合物的方法

    公开(公告)号:US06372903B1

    公开(公告)日:2002-04-16

    申请号:US09600996

    申请日:2000-07-26

    IPC分类号: C07D25502

    摘要: The invention concerns a method for preparing polyazacycloalkanes immobilised on a silica gel from a polyazacycloalkane of formula (A) in which: R1 and R2 represent a hydrogen atom, an alkyl radical, or a [hetero(aryl)]alkyl radical; W1, W2 and W3 represent a radical of formula (B): —[(CT1T2)n—[N(R3)]p—(CT3T4)m]l— such as defined in the description; R3 represents a hydrogen atom, an alkyl radical or a [hetero(aryl)]alkyl radical, provided that the polyazacycloalkane ring of the compound of formula (A) comprises not more than 30 cyclic carbon atoms, and not more than 6 cyclic nitrogen atoms. The invention is characterised in that: (a) the compound of formula (A) is reacted with a compound of formula (C): Z—R4—Si(X1)(X2)(X3), such as defined in the description to form a compound of formula (D); (b) said compound of formula (D) is condensed on the silanol sites of a silica gel to form the immobilised polyazacycloalkane of formula (E); and (c) some ethanol sites having not reacted are, if required, protected by Z′, a group protecting the hydroxyl function. The invention is useful for separating oxygen from air.

    摘要翻译: 本发明涉及一种由式(A)的多氮杂环烷固定在硅胶上的多氮杂环烷烃的方法,其中:R1和R2表示氢原子,烷基或[杂(芳基)]烷基; W1,W2和W3表示式(B)的基团: - [(CT1T2)n- [N(R3)] p-(CT3T4)m] -1-如描述中所定义; R 3表示氢原子,烷基或[杂(芳基)]烷基,条件是式(A)化合物的多氮杂环烷烃环包含不多于30个环状碳原子,并且不超过6个环状氮原子 。 本发明的特征在于:(a)式(A)化合物与式(C)化合物:Z-R 4 -Si(X 1)(X 2)(X 3) 形成式(D)的化合物; (b)所述式(D)化合物在硅胶的硅烷醇位上缩合形成式(E)的固定化的多氮杂环烷烃; 和(c)如果需要,一些没有反应的乙醇部位被保护羟基官能团的Z'保护。 本发明可用于从空气中分离氧气。