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    • 1. 发明公开
    • MANUFACTURING METHOD FOR SULFONIC ACID GROUP-CONTAINING ETHER COMPOUND
    • VERFAHREN ZUR HERSTELLUNG EINERSCHWEFELSÄUREGRUPPENHALTIGENETHERVERBINDUNG
    • EP2327691A1
    • 2011-06-01
    • EP09813169.1
    • 2009-09-14
    • Nippon Shokubai Co., Ltd.
    • NAKANO MasatoKANZAKI AkihikoTSUMORI Takahiro
    • C07C303/02C07C309/09C08F16/30
    • C07C309/20C07C303/02C07C309/09C08F216/1466
    • The present invention provides a method for efficiently producing a sulfonic acid group-containing ether compound having a high purity and a good polymerizability while preventing production of a byproduct, and provides a sulfonic acid group-containing ether compound containing fewer impurities and having a good radical (co)polymerizability.
      The present invention provides a method of producing a sulfonic acid group-containing ether compound by reacting a sulfurous acid compound with a compound represented by the formula (1) :

      wherein R 1 represents a single bond, a CH 2 group, or a CH 2 -CH 2 group, and R 2 represents H, or a CH 3 group,
      the method comprising the steps of:
      adjusting pH of a reaction system to 5.5 or grater with use of an alkaline substance; and
      adding the compound represented by the formula (1) to a reaction vessel containing the sulfurous acid compound.
    • 本发明提供了一种有效地制备具有高纯度和良好聚合性同时防止副产物生成的含磺酸基醚化合物的方法,并且提供了含少量杂质和具有良好基团的含磺酸基醚化合物 (共)聚合性。 本发明提供一种通过使亚硫酸化合物与式(1)表示的化合物反应制备含磺酸基的醚化合物的方法:其中R 1表示单键,CH 2基或CH 2 -CH 2基,R 2表示H或CH 3基,该方法包括以下步骤:使用碱性物质将反应体系的pH调节至5.5或磨浆机; 并将由式(1)表示的化合物加入含有亚硫酸化合物的反应容器中。