Process for the preparation of ethylidene norbornenes
    1.
    发明授权
    Process for the preparation of ethylidene norbornenes 失效
    制备乙二醛的方法

    公开(公告)号:US3804912A

    公开(公告)日:1974-04-16

    申请号:US20138671

    申请日:1971-11-23

    Applicant: STAMICARBON

    CPC classification number: C07C5/2512 C07C13/43

    Abstract: A PROCESS FOR ISOMERIZING VINYL NORBORNENES INTO ETHYLIDENE NORBORNENES IS DISCLOSED, WHEREIN SAID ISOMERIZATION IS CONDUCTED IN THE PRESENCE OF GROUP II-A AND/OR GROUP II-B OF THE PERIODIC SYSTEM OXIDE CATALYST. THE CATALYST SYSTEM RESULTS IN HIGH CONVERSIONS AND CATALYST CAPACITIES. THE RESULTING ETHYLIDENE NORBORNENES ARE KNOWN PRODUCTS HAVING KNOWN USES, SUCH AS, E.G. COMMONOMERS WITH ETHYLENE AND PROPYLENE FOR THE PRODUCTION OF ELASTOMERIC COPOLYMERS.

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