Process for the preparation of bis-hydroxymethyl-methylphosphine
    12.
    发明授权
    Process for the preparation of bis-hydroxymethyl-methylphosphine 失效
    制备双羟甲基 - 甲基膦的方法

    公开(公告)号:US3927112A

    公开(公告)日:1975-12-16

    申请号:US46015174

    申请日:1974-04-11

    Applicant: HOECHST AG

    CPC classification number: C08G18/388 C07F9/53

    Abstract: A process is provided for the catalytic preparation of bis(hydroxymethyl)-methylphosphine oxide, which comprises mixing tris-(hydroxymethyl)-phosphine with at least 1 weight % of carbon tetrachloride or carbon tetrabromide at temperatures of from 10* to +120*C, and, after completed reaction, isolating the bis(hydroxymethyl)-methylphosphine oxide so obtained by distilling off the carbon tetrahalide.

    Abstract translation: 提供用于催化制备双(羟甲基) - 甲基氧化膦的方法,其包括在-10℃至+ 120℃的温度下将三 - (羟甲基) - 膦与至少1重量%的四氯化碳或四溴化碳混合 DEG,并且在完成反应后,通过蒸馏出四卤化碳分离得到的双 - (羟甲基) - 甲基氧化膦。

    Bisammonium compounds and process for preparing them
    13.
    发明授权
    Bisammonium compounds and process for preparing them 失效
    BISAMMONIUM化合物及其制备方法

    公开(公告)号:US3661966A

    公开(公告)日:1972-05-09

    申请号:US3661966D

    申请日:1969-08-04

    Applicant: HOECHST AG

    CPC classification number: A61K31/14 C07C233/00

    Abstract: BIS-AMMONIUM COMPOUNDS OF THE FORMULA

    R1-OC-N(-CH2-N(+)(-R2)(-R4)-R3))2 2X(-)

    WHEREIN R1 IS ALKYL HAVING 1 TO 6 C-ATOMS, ALKOXY HAVING 1 TO 25 CARBON ATOMS, ALKENYOXY HAVING 3 TO 18 C-ATOMS, CYCLOALKOXY HAVING 4 TO 8 C-ATOMS, CYCLOALKYLALKOXY OR ALCKYLCYCLOALKOXY EACH HAVING 5 TO 8 C-ATOMS, AND HALOGENO-ALKOXY OR ALKOXYALKOXY EACH HAVING 1 TO 6 C-ATOMS, R2 IS ALKYL HAVING 1 TO 3 C-ATOMS, R3 IS ALKYL HAVING 1 TO 25 C-ATOMS, ALKENYL HAVING 3 TO 18 C-ATOMS, CYCLOALKYL HAVING 4 TO 8 C-ATOMS OR PHENALKYL HAVING 1 TO 2 C-ATOMS IN THE ALKYLENE RADICAL AND OPTIONALLY ONE CHLORINE ATOM OR A NITRO GROUP IN THE PHENYL NUCLEUS, R4 IS ALKYL HAVING 6 TO 25 C-ATOMS OR ALKENYL HAVING 5 TO 25 C-ATOMS, AND X- IS AN ANION OF A NON-TOXIC ACID AND A PROCESS FOR PREPARING THEM ARE DESCRIBED. THE COMPOUNDS HAVE VALUABLE ENTHELMINTIC PROPERTIES.

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