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    • 56. 发明授权
    • Process for producing sulfur-containing hydroxycarboxylic acid
    • 生产含硫羟基羧酸的方法
    • US08178325B2
    • 2012-05-15
    • US12440621
    • 2007-09-21
    • Hiroyuki AsakoKoji Hagiya
    • Hiroyuki AsakoKoji Hagiya
    • C12P11/00
    • C12P11/00
    • There is provided is a process for producing a sulfur-containing α-hydroxycarboxylic acid compound represented by the formula (2): wherein R1 represents hydrogen, C1-8 alkyl, or C6-20 aryl, which comprises subjecting a sulfur-containing ketol represented by the formula (1): wherein R1 is the same as defined above, to the action of microbial cells of a microorganism belonging to the genus Pseudomonas, Rhodococcus or Bacillus capable of converting the ketol into a corresponding α-hydroxycarboxylic acid compound, or a treated material thereof, thereby producing the sulfur-containing α-hydroxycarboxylic acid without using a hydroxynitrile compound as a starting material.
    • 提供了一种制备由式(2)表示的含硫α-羟基羧酸化合物的方法:其中R1表示氢,C1-8烷基或C6-20芳基,其包括使含硫的酮醇代表 通过式(1)表示的化合物:其中R 1与上述定义相同,能够将酮转化成相应的α-羟基羧酸化合物的属于假单胞菌属,红球菌属或芽孢杆菌属的微生物的微生物细胞的作用,或 不会使用羟基腈化合物作为起始原料,生成含硫的α-羟基羧酸。
    • 60. 发明申请
    • PROCESS FOR PRODUCTION OF HALOGEN-SUBSTITUTED BENZENEDIMETHANOL
    • 生产取代苯甲醛的方法
    • US20100174122A1
    • 2010-07-08
    • US12303585
    • 2007-06-21
    • Koji Hagiya
    • Koji Hagiya
    • C07C29/147
    • C07C29/147C07C33/46
    • A process for the production of a halogen-substituted benzenedimethanol represented by the formula (2): wherein X2, X2, X3 and X4 are the same or different and independently represent a hydrogen atom or a halogen atom, provided that at least one of X1, X2, X3 and X4 represents a halogen atom, comprising reacting a halogen-substituted terephthalic acid diester represented by the formula (1): wherein X1, X2, X3 and X4 are the same meanings as defined above and R1 and R2 are the same or different and independently represent an unsubstituted or substituted alkyl group, a metal borohydride compound and an acid in the presence of an ether solvent, wherein the amount of the acid is 0.2 to 3 moles per 1 mole of the metal borohydride compound based on protons, and the reaction is conducted under the condition where the liquid phase of the reaction mixture is a single layer.
    • 一种制备由式(2)表示的卤素取代的苯二甲醇的方法:其中X 2,X 2,X 3和X 4可以相同或不同,并且独立地表示氢原子或卤原子,条件是X1中的至少一个 X 1,X 3和X 4表示卤素原子,包括使由式(1)表示的卤素取代的对苯二甲酸二酯:其中X 1,X 2,X 3和X 4与上述相同,R 1和R 2相同 或不同且独立地表示未取代或取代的烷基,金属硼氢化合物和酸,在醚溶剂存在下,其中每1摩尔基于质子的金属硼氢化合物的酸的量为0.2至3摩尔, 反应在反应混合物的液相为单层的条件下进行。