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    • 23. 发明公开
    • Process for producing optically active alcohol
    • Verfahren zur Herstellung optisch aktiver Alkohole。
    • EP0381434A1
    • 1990-08-08
    • EP90300938.9
    • 1990-01-30
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Yoneyoshi, YukioSuzukamo, GohfuKonya, NaotoIkeda, Takaharu
    • C07D249/08C07F5/02C07C29/143
    • C07D231/12C07B2200/07C07C29/143C07D233/56C07D249/08C07C31/125C07C33/02C07C31/12
    • A process for producing an optically active alcohol of the formula
      [R⁴ and R⁵ are different and each is a lower alkyl group, an aryl group, and aralkyl group or a 2-substituted-1-­triazoleethylene group represented by the general formula (III)
      (R⁶ is a halogen- or haloalkyl-substituted or unsubstituted phenyl group or a cycloalkyl group)] comprises allowing

      (A) an optically active amino alcohol represented by the general formula (I)
      (R¹ is an aryl group, R² is a lower alkyl group, R³ is a hydrogen atom or a lower alkyl group, and the carbon atoms having a mark * are each an asymmetric carbon atom) and an acid, or a salt of the optically active amino alcohol (I) and an acid,
      (B) a metal borohydride, and
      (C) at least one of water, sulfides, cyclic ethers and ethers of mono alcohols
      to react with
      a prochiral ketone represented by the general formula (II)
      [R⁴ and R⁵ are as defined above].
    • 制备式CHEM的光学活性醇的方法[R 4和R 5不同,各自为低级烷基,芳基和芳烷基或2-取代-1-三唑基 由通式(III)表示的基团(R 6是卤素或卤代烷基取代或未取代的苯基或环烷基)]包括使(A)由通式(III)表示的光学活性氨基醇 (I)(R 1是芳基,R 2是低级烷基,R 3是氢原子或低级烷基,并且具有标记*的碳原子各自 不对称碳原子)和酸,或光学活性氨基醇(I)和酸的盐,(B)金属硼氢化物,和(C)至少一种水,硫醚,环醚和单醚 与通式(II)表示的前手性酮反应的醇 [R 4和R 5如上所定义]。