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    3.
    发明专利
    未知

    公开(公告)号：DE1418672A1

    公开(公告)日：1969-06-19

    申请号：DE1418672

    申请日：1961-08-26

    Applicant: BASF AG

    Inventor： DIETMAR WITTENBERG DR ,  HANS LAUTENSCHLAGER DR ,  NIKOLAUS VON KUTEPOW DR ,  FRITZ MEIER DR ,  HUBERTUS SEIBT DR

    IPC: C07C2/46 ,  C07C2/52 ,  C07F9/02 ,  C07F9/145 ,  C07F9/6574

    Abstract: Cyclic olefins are obtained by the polymerization of butadiene in the presence of a catalyst prepared from (a) a compound of iron, cobalt or nickel; (b) a hydride or organo-compound of an element of Group Ia, IIa, IIb or IIIa (i.e. non-transitional elements of Group III) and (c) a phosphite having an aryl radical with a substituent ortho to the phosphite group or a condensed 6-membered ring ortho and meta to the phosphite group. The constituent (a) is preferably an inorganic or organic salt or a chelate compound of nickel or cobalt. The ortho substituent in the aryl phosphite, which may be derived from benzene, naphthalene or diphenyl, may be an alkyl, alkoxy, halogen or aryloxy or together with the aryl group may form a fused, six-membered, carbocyclic ring. The other two phosphite substituents may be the same or different. The mol ratio of (a) : (b) : (c) may be 1 : 0.5-20: 1-4, the amount by weight of (a) being 0.001-0.1 times that of butadiene. A hydrocarbon or ether solvent, including reaction products, may be present and the temperature may be 0-250 DEG C. with sufficient pressure to maintain liquid phase. Octadiene-1,5 is the principal product. Specification 917,103 is referred to.

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