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    CARBOXYLIC ACID PREPARATION METHOD
    2.
    发明公开
    CARBOXYLIC ACID PREPARATION METHOD 有权
    羧酸的制备方法

    公开(公告)号：EP3222606A1

    公开(公告)日：2017-09-27

    申请号：EP15864805.5

    申请日：2015-09-25

    申请人： Zhejiang Zhuji United Chemicals Co., Ltd

    发明人： SU, Yehua ,  SHI, Jieping ,  LU, Jianxin ,  ZHANG, Tianhao ,  YU, Xiaohua ,  CAI, Guoping ,  CHEN, Bangchi

    IPC分类号： C07B41/08 ,  C07C205/58 ,  C07C201/12 ,  C07C317/44 ,  C07C315/04 ,  C07D213/79 ,  C07C53/08 ,  C07C51/285

    CPC分类号： C07C51/285 ,  C07B41/08 ,  C07C53/08 ,  C07C201/12 ,  C07C205/58 ,  C07C253/30 ,  C07C315/04 ,  C07C317/44 ,  C07D213/60 ,  C07D213/79 ,  C07D213/803 ,  C07C205/56 ,  C07C205/11 ,  C07C255/41

    摘要： A preparative method for carboxylic acids is disclosed in the present invention. The method is characterized in that: compounds (II) are reacted in the presence of hydrogen peroxide and base to produce target products (I), as represented by the following reaction scheme: wherein R 1 is aryl, pyridyl, pyrimidyl, pyridazinyl, pyrazinyl, benzothienyl, benzofuranyl, quinolinyl, isoquinolinyl, thiadiazolyl, C 1-6 alkyl, C 3-6 cycloalkyl, C 2-6 alkenyl, C 2-6 alkynyl and hydrogen; R 2 is alkoxycarbonyl, alkylaminocarbonyl, aminocarbonyl, alkylthiolcarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, aldehyde, carboxyl, nitro, alkyl and hydrogen; R 3 is alkoxycarbonyl, alkyl amido carbonyl, aminocarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, carboxyl and nitro. The present invention has the following main benefits: cheap and readily available starting materials, safe processes, high yield, good quality, which facilitates industrial production.

    摘要翻译： 本发明公开了一种羧酸的制备方法。 该方法的特征在于：化合物（II）在过氧化氢和碱的存在下反应以产生目标产物（I），如以下反应方案所示：其中R 1为芳基，吡啶基，嘧啶基，哒嗪基，吡嗪基， 苯并噻吩基，苯并呋喃基，喹啉基，异喹啉基，噻二唑基，C1-6烷基，C3-6环烷基，C2-6链烯基，C2-6炔基和氢; 烷氧基羰基，烷基氨基羰基，氨基羰基，烷基硫醇基，氰基，磺酰基，亚磺酰基，羰基，醛，羧基，硝基，烷基和氢; R3为烷氧基羰基，烷基酰氨基羰基，氨基羰基，氰基，磺酰基，亚磺酰基，羰基，羧基和硝基。 本发明具有以下主要优点：起始原料廉价易得，工艺安全，收率高，质量好，便于工业化生产。