Process for producing acrylic acid derivative
    1.
    发明申请
    Process for producing acrylic acid derivative 审中-公开
    制备丙烯酸衍生物的方法

    公开(公告)号:US20060287527A1

    公开(公告)日:2006-12-21

    申请号:US11446448

    申请日:2006-06-01

    IPC分类号: C07D239/34

    摘要: Processes for producing a compound represented by the formula (1), which includes an acrylic acid derivative and is useful as an agricultural chemical or medicine. One of the processes comprises the step of formulating a compound (3) and converting the OH of the resultant compound (2) into OR″. The first step comprises reacting a formic or orthoformic ester in the presence of a Lewis acid and a base. The second step comprises reacting the compound with R″OH or with R″OH and CH(OR″)3 under acidic conditions or using a phase-transfer catalyst in a two-phase system and regulating the base and the concentration thereof to stereoselectively synthesize the target compound. In another, process, the compound is efficiently produced without isolating the compound. The compound can also be produced without the compound (2).

    摘要翻译: 制备由式(1)表示的化合物的方法,其包括丙烯酸衍生物并且可用作农业化学品或药物。 其中一个方法包括配制化合物(3)并将所得化合物(2)的OH转化为OR“的步骤。 第一步包括在路易斯酸和碱的存在下使甲酸或正癸酸酯反应。 第二步包括在酸性条件下或在两相体系中使用相转移催化剂使化合物与R''OH或与R''OH和CH(OR“)3'反应, 调节碱和其浓度以立体选择性合成目标化合物。 在另一个方法中,化合物在不分离化合物的情况下有效生产。 化合物也可以不用化合物(2)制备。