PROCESS FOR PREPARATION OF 2-FLUOROACRYLIC ESTERS
    1.
    发明公开
    PROCESS FOR PREPARATION OF 2-FLUOROACRYLIC ESTERS 有权
    VERFAHREN ZUR HERSTELLUNG VON 2-FLUORACRYLESTERN

    公开(公告)号:EP2444389A1

    公开(公告)日:2012-04-25

    申请号:EP10777617.1

    申请日:2010-03-23

    IPC分类号: C07C67/317 C07C69/653

    CPC分类号: C07C67/317 C07C69/653

    摘要: According to the present invention, there is provided a production process of a 2-fluoroacrylic ester including: a bromination step of converting a 2-fluoropropionic ester to a 2-bromo-2-fluoropropionic ester by reaction of the 2-fluoropropionic ester with a nitrogen-bromine bond-containing brominating agent in the presence of a radical initiator; and a dehydrobromination step of reacting the 2-bromo-2-fluoropropionic ester with a base. It is not necessary in this process to adopt very-low-temperature conditions and to use a stoichiometric amount of expensive reagent. The target 2-fluoroacrylic ester can be thus produced at low cost.

    摘要翻译: 根据本发明,提供了一种2-氟丙烯酸酯的制备方法,包括:通过2-氟代丙酸酯与2-氟丙酸酯的反应将2-氟丙酸酯转化为2-溴-2-氟丙酸酯的溴化步骤 含有溴 - 溴键的溴化剂在自由基引发剂存在下反应; 和使2-溴-2-氟丙酸酯与碱反应的脱溴氢化步骤。 在这个过程中不需要采用非常低的温度条件和使用化学计量的昂贵的试剂。 因此,可以低成本地制造目标2-氟丙烯酸酯。