Process for producing stilbene-4,4'-dialdehyde
    5.
    发明授权
    Process for producing stilbene-4,4'-dialdehyde 失效
    二苯乙烯-4,4'-二醛生产方法

    公开(公告)号:US4579975A

    公开(公告)日:1986-04-01

    申请号:US712453

    申请日:1985-03-13

    IPC分类号: C07C45/72

    CPC分类号: C07C45/72

    摘要: Stilbene-4,4'-dialdehyde can be produced by reaction of ethylene with 4-bromobenzaldehyde in the presence of a base and of a palladium compound as catalyst in a simple and economical manner in high yields, by performing the reaction under a partial pressure of ethylene of 0.01 to 1 bar. The stilbene-4,4'-dialdehyde obtained is suitable for example for producing optical brighteners.

    摘要翻译: 二苯乙烯-4,4'-二醛可以通过乙烯与4-溴苯甲醛在碱和钯化合物作为催化剂的存在下以高收率的简单和经济的方式通过在分压下进行反应, 的乙烯为0.01至1巴。 得到的芪-4,4'-二醛适用于制备荧光增白剂。