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    • 1. 发明申请
    • PROCESS FOR PRODUCING CARBOXYLIC ACID ESTER
    • 生产羧酸酯的方法
    • US20130150611A1
    • 2013-06-13
    • US13817352
    • 2011-08-25
    • Koji Hagiya
    • Koji Hagiya
    • C07C67/44
    • C07C67/44C07C67/39C07C319/20C07C323/52C07C69/716C07C69/738C07C69/24C07C69/78
    • The present invention relates to a process for producing a carboxylic acid ester, comprising a step of oxidizing an aldehyde by mixing an alcohol, carbon dioxide, the aldehyde and at least one compound selected from the group consisting of compounds represented by the formulae (2-1) and (2-2): wherein R2 represents an alkyl group optionally having a substituent or the like; R3 and R4 each independently represents an alkyl group optionally having a substituent or the like or R3 and R4 are linked together to form a divalent hydrocarbon group optionally having a substituent or the like; Y represents a group of —S— or a group of —N(R5)—, wherein R5 represents an alkyl group optionally having a substituent or the like, or R5 is linked to R4 to form a divalent hydrocarbon group optionally having a substituent; and R8 represents an alkyl group.
    • 本发明涉及一种制备羧酸酯的方法,其包括通过将醇,二氧化碳,醛和至少一种选自由式(2- 1)和(2-2):其中R 2表示任选具有取代基的烷基等; R3和R4各自独立地表示任选具有取代基等的烷基或R3和R4连接在一起形成任选具有取代基等的二价烃基; Y表示-S-或-N(R5) - 基的基团,其中R5表示任选具有取代基的烷基等,或R5与R4连接形成任选具有取代基的二价烃基; 并且R 8表示烷基。
    • 10. 发明申请
    • METHOD FOR PRODUCING HALOGEN-SUBSTITUTED BENZENEDIMETHANOL
    • 生产取代苯甲醛的方法
    • US20100222613A1
    • 2010-09-02
    • US12160317
    • 2007-01-16
    • Koji Hagiya
    • Koji Hagiya
    • C07C39/10
    • C07C29/147C07C33/46
    • A method for producing a halogen-substituted benzenedimethanol represented by the formula (2): wherein X1, X2, X3 and X4 are the same or different and each independently represent a hydrogen atom or a halogen atom, provided that X1, X2, X3 and X4 are not hydrogen atoms at the same time, by reacting a halogen-substituted terephthalic acid represented by the formula (1): wherein X1, X2, X3 and X4 are the same meanings as defined above, with a borohydride compound in an organic solvent, followed by contacting the obtained reaction mixture with hydrogen chloride at 40 to 70° C.
    • 由式(2)表示的卤素取代的苯二甲醇的制造方法:其中X1,X2,X3和X4相同或不同,并且各自独立地表示氢原子或卤素原子,条件是X1,X2,X3和 通过使式(1)表示的卤素取代对苯二甲酸(其中X 1,X 2,X 3和X 4与上述相同的含义)与有机溶剂中的硼氢化合物反应,X 4不同时为氢原子 ,然后在40-70℃使所得反应混合物与氯化氢接触。