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    • 10. 发明专利
    • Production of beta-mercaptopropionic acid ester
    • β-谷胱甘肽酸酯的生产
    • JPS59186955A
    • 1984-10-23
    • JP6137283
    • 1983-04-06
    • Toyo Kasei Kogyo Kk
    • TATSUMI HIDETAKAOONISHI AKIHISAKANATSUKI SHIGERU
    • B01J31/02B01J31/00C07B61/00C07C67/00C07C313/00C07C319/04C07C319/16C07C323/52
    • Y02P20/52
    • PURPOSE: To obtain the titled compound useful as a raw material for various industrial chemicals, particularly stabilizer for resins, intermediate for medicines, and removing agent for heavy metal in fat or oil, etc., by reacting an acrylic acid ester with hydrogen sulfide in a solvent, e.g. an amide.
      CONSTITUTION: An acrylic acid ester of the formula CH=CHCOOR
      1 (R
      1 is 1W 8C alkyl, cycloalkyl or alkylcycloalkyl) is reacted with hydrogen sulfide in an amide solvent of formula I or II (R
      2 WR
      5 are 1W18C hydrocarbon, etc.), e.g. dimethylformamide, in the presence or absence of a weakly basic amine base of formula III or IV (R
      10 WR
      16 are 1W18C hydrocarbon, etc.) at 0W80°C under pressure to give the aimed substance. The hydrogen sulfide is used in an equivalent of 1W5 times of that of the acrylic acid ester, and the pressure is 1W14atm.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过使丙烯酸酯与硫化氢反应,得到可用作各种工业化学品的原料的标题化合物,特别是用于树脂的稳定剂,药物中间体和重油中的重金属除去剂 溶剂,例如 酰胺。 组成:式I = CHCOOR1(R1为1-8烷基,环烷基或烷基环烷基)的丙烯酸酯与式I或II的酰胺溶剂中的硫化氢反应(R2-R5为1-18C烃等) ),例如 在0-80℃下,在存在或不存在式III或IV的弱碱性碱碱(R 10 -R 16为1-18C烃等)的存在下,在压力下进行反应,得到目的物质。 硫化氢的使用量相当于丙烯酸酯的1-5倍,压力为1-14atm。