6.
    发明专利
    未知

    公开(公告)号:DE3767948D1

    公开(公告)日:1991-03-14

    申请号:DE3767948

    申请日:1987-08-11

    Applicant: HOECHST AG

    Abstract: Tertiary alkylphosphines of the general formula R3P, in which R stands for identical or different, linear, unsubstituted alkyl groups having 3 to 20 carbon atoms, with the proviso however that one of the alkyl groups may be a secondary butyl group, are made by reacting hydrogen phosphide PH3 with an appropriate alkene or alkenes in stoichiometric excess, if desired, at elevated temperature and under increased pressure in contact with a radical-yielding agent. 2,2'-azobis-(2-methylbutyronitrile) is used as the radical-yielding agent in the absence of whatever alien solvent.

    PROCESS FOR THE PREPARATION OF TERTIARY PHOSPHINE OXIDES

    公开(公告)号:CA1309420C

    公开(公告)日:1992-10-27

    申请号:CA581939

    申请日:1988-11-02

    Applicant: HOECHST AG

    Abstract: HOE 87/H 029 Process for the preparation of tertiary phosphine oxides of the disclosure: The invention relates to a process for the preparation of tertiary phosphine oxides by reacting primary or secondary phosphines with dimethyl carbonate under elevated pressure at elevated temperature.

Patent Agency Ranking