Process for the preparation of 2-cyanoethylphosphinic esters
    2.
    发明授权
    Process for the preparation of 2-cyanoethylphosphinic esters 失效
    2-氰基乙基次膦酸酯的制备方法

    公开(公告)号:US5990337A

    公开(公告)日:1999-11-23

    申请号:US921654

    申请日:1997-08-26

    CPC分类号: C07F9/657172 C07F9/3211

    摘要: The invention relates to a process for the preparation of phosphorus-containing compounds of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are identical or different and are a straight-chain or branched alkyl radical having 1 to 8 carbon atoms, a cyclohexyl-, cyclopentyl-, aryl-, halogen-, (C.sub.1 -C.sub.6)-alkyl- or (C.sub.1 -C.sub.6)-alkoxy-substituted aryl radical, where R.sup.1 and R.sup.2, together with the phosphorus atom and the oxygen atom, can also form a ring, in particular an oxaphosphorin ring, which comprises metering acrylonitrile at elevated temperature into a compound of the formula (II) ##STR2## where R.sup.1 and R.sup.2 are as defined above.

    摘要翻译: 本发明涉及一种制备式(I)的含磷化合物的方法,其中R 1和R 2相同或不同,为具有1至8个碳原子的直链或支链烷基,环己基 - 环戊基 - ,芳基 - ,卤素 - ,(C 1 -C 6) - 烷基 - 或(C 1 -C 6) - 烷氧基取代的芳基,其中R 1和R 2与磷原子和氧原子一起也可以形成环, 特别是氧化磷杂环,其包括在升高的温度下将丙烯腈计量为式(II)的化合物,其中R 1和R 2如上所定义。