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    • 6. 发明公开
    • Method for producing diarylmethanes
    • Verfahren zur Herstellung von Diarylmethanen。
    • EP0428081A1
    • 1991-05-22
    • EP90121488.2
    • 1990-11-09
    • KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
    • Akatsu, MasahiroTakayama, HajimeMatsuoka, Takeshi
    • C07C15/16C07C2/86
    • C07C2/861C07C2529/08C07C2529/60C07C15/16
    • The present invention relates to a method for producing diarylmethanes represented by the following formula (III)
      wherein R¹ to R³ each stand for a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. This method comprises the reaction of a benzyl chloride represented by the following general formula (I) with benzene or an alkylbenzene represented by the following general formula (II):
      wherein R¹ to R³ have the same meanings as defined above. and is characterized in that the catalyst used is an HY or HL type zeolite having a SiO₂/Al₂O₃ molar ratio of 4 -­10 and an alkali metal content of 5% by weight or less, calculated as an alkali metal oxide, or a zeolite obtained by the exchange of said NY or HL type zeolite with cations of a di- or tri-valent metal.
    • 本发明涉及由下式(III)表示的二芳基甲烷的制造方法,其中R 1〜R 3各自表示氢原子或碳原子数1〜3的烷基。 该方法包括由以下通式(I)表示的苄基氯与由下列通式(II)表示的苯或烷基苯的反应:其中R 1至R 3具有相同的含义 如上所定义。 所用的催化剂是SiO 2 / Al 2 O 3摩尔比为4〜10,碱金属含量为5重量%以下的HY或HL型沸石,以碱金属氧化物计,或得到的沸石 通过所述NY或HL型沸石与二价或三价金属的阳离子交换。