Manufacture of organic nitriles
    25.
    发明授权
    Manufacture of organic nitriles 失效
    有机腈的制造

    公开(公告)号:US4230634A

    公开(公告)日:1980-10-28

    申请号:US41258

    申请日:1979-05-21

    CPC分类号: C07C253/10

    摘要: A process for the manufacture of adiponitrile is described by reacting butadiene with hydrogen cyanide and a catalyst which is a complex of a copper salt and an organic nitrile to form 3-pentenenitrile, which is then hydrocyanated to adiponitrile in which the solvent and sole nitrile complexing agent for the copper is 3-methylglutaronitrile or a mixture of 3-methylglutaronitrile with 2-ethylsuccindinitrile or with 2-ethylsuccindinitrile and adiponitrile.

    摘要翻译: 通过使丁二烯与氰化氢反应和作为铜盐和有机腈的络合物的催化剂形成3-戊烯腈来描述己二腈的制备方法,然后将其氢化成己二腈,其中溶剂和单独的腈络合 铜的试剂是3-甲基戊二腈或3-甲基戊二腈与2-乙基琥珀腈或与2-乙基琥珀腈和己二腈的混合物。

    Selective cis/trans isomerization of 2-pentenenitrile in a solution of pentenenitrile isomers
    30.
    发明授权
    Selective cis/trans isomerization of 2-pentenenitrile in a solution of pentenenitrile isomers 失效
    在PENTENENITRILE ISOMERS的解决方案中选择性的CIS /转移异构体

    公开(公告)号:US3852327A

    公开(公告)日:1974-12-03

    申请号:US39251473

    申请日:1973-08-29

    申请人: DU PONT

    发明人: DRULINER J KING C

    CPC分类号: C07C255/00

    摘要: Cis- and trans-2-pentenenitriles in a mixture of pentenenitriles are brought closer to their equilibrium ratio by contacting the mixture with a Lewis acid/Lewis base catalyst composition. By this process trans-2-pentenenitrile can be removed from a mixture containing mainly 3-pentenenitrile by isomerizing the trans-2pentenenitrile to cis-2-pentenenitrile and removing the more volatile cis isomer by fractional distillation. There is substantially no isomerization of 3-pentenenitrile to cis- or trans-2-pentenenitrile.

    摘要翻译: 通过使该混合物与路易斯酸/路易斯碱催化剂组合物接触,将过渡腈的混合物中的顺式和反式-2-戊烯腈更接近于它们的平衡比。 通过该方法,可以通过将反式-2-戊烯腈异构化为顺式-2-戊烯腈并通过分馏除去更易挥发的顺式异构体,从主要包含3-戊烯腈的混合物中除去反式-2-戊烯腈。 基本上没有将3-戊烯腈异构化为顺式或反式-2-戊烯腈。