Process to prepare a multidentate phosphite compound
    25.
    发明授权
    Process to prepare a multidentate phosphite compound 失效
    制备多齿亚磷酸酯化合物的方法

    公开(公告)号:US5710306A

    公开(公告)日:1998-01-20

    申请号:US616747

    申请日:1996-03-15

    摘要: A process to prepare a multidentate phosphite compound according to the general formula (1) ##STR1## in which n is 2-6, R is an n-valent organic group and R.sup.1 and R.sup.2 are fused aromatic ring systems with 2 or more rings, which rings are substituted on the ortho position relative to the oxygen atom only with hydrogen, by first preparing a phosphorochloridite compound from a R.sup.1 --OH and R.sup.2 --OH alcohol compound and a phosphorus chloride compound and subsequently contacting the phosphorochloridite compound with an alcoholic compound according to R--(OH).sub.n, wherein the phosphorochloridite is prepared by performing the two steps in a solvent: a) contacting a compound with the general formula: ##STR2## in which R.sup.3 and R.sup.4 are C.sub.1 -C.sub.4 alkyl groups, with the R.sup.1 OH and R.sup.2 OH compounds, and b) contacting the resulting compound of step (a) which has the formula (3): ##STR3## with HY, wherein Y is a halogen.

    摘要翻译: 制备根据通式(1)的多齿亚磷酸酯化合物的方法,其中n是2-6,R是n价有机基团,R 1和R 2是具有2个或更多个环的稠合芳香环体系, 这些环仅在与氢气相对于氧原子的邻位上被取代,首先由R1-OH和R2-OH醇化合物和氯化磷化合物制备磷酰氯化合物,随后将其与醇化合物接触, 其中通过在溶剂中进行两个步骤来制备磷酰氯:a)使具有以下通式的化合物:其中R 3和R 4是C 1 -C 4烷基, 与R1OH和R2OH化合物反应,b)使所得到的具有式(3)的步骤(a)的化合物与式(3)与HY结合,其中Y是卤素。