2.
    发明专利
    失效

    公开(公告)号:JPS5953357B2

    公开(公告)日:1984-12-24

    申请号:JP9260977

    申请日:1977-08-03

    Applicant: BASF AG

    Abstract: Symmetrical carotenoids are manufactured from the molecular halves thereof by a process wherein phosphonium salts of the molecular halves of these symmetrical carotenoids are oxidized electrochemically in a solvent and in the presence of a base, causing the molecular halves to dimerize, with elimination of substituted phosphine oxide.

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