Synthetic method for the fluoromethylation of alcohols
    84.
    发明授权
    Synthetic method for the fluoromethylation of alcohols 有权
    醇的氟甲基化合成方法

    公开(公告)号:US06245949B1

    公开(公告)日:2001-06-12

    申请号:US09587414

    申请日:2000-06-01

    IPC分类号: C07C4101

    摘要: A method for fluoromethylating halogenated alcohols. The method includes the step of providing an alpha-halogenated alcohol of the formula R1C(CX3)2OH, wherein R1 is selected from the group consisting of hydrogen and alkyl groups. The alpha-halogenated alcohol is reacted with a first compound of the formula CH2(OR2)2 in the presence of an acid catalyst to form an acetal. The resulting acetal is then chlorinated with a chlorinating agent to form a chloride compound of the formula R1C(CX3)2OCH2Cl. The chloride compound is then converted to a fluoride compound of the formula R1C(CX3)2OCH2F using a fluorinating agent.

    摘要翻译: 氟代甲基化卤代醇的方法。 该方法包括提供式R1C(CX3)2OH的α-卤代醇的步骤,其中R 1选自氢和烷基。 在酸催化剂存在下,使α-卤代醇与式CH 2(OR 2)2的第一化合物反应,形成缩醛。 然后将得到的缩醛用氯化剂氯化以形成式R 1 C(CX 3)2 OCH 2 Cl的氯化物化合物。 然后使用氟化剂将氯化物化合物转化为式R1C(CX3)2OCH2F的氟化物。