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    • 4. 发明授权
    • Solid acid catalyst
    • 固体酸催化剂
    • US06383970B1
    • 2002-05-07
    • US09597536
    • 2000-06-19
    • Taku MimuraJun KaitaNoriaki FukuokaYasuyuki Hattori
    • Taku MimuraJun KaitaNoriaki FukuokaYasuyuki Hattori
    • B01J3100
    • C07C67/08B01J27/16B01J31/0261B01J2231/40B01J2231/49C07C67/03C07C69/52C07C69/24
    • The present invention provides a solid acid catalyst developing high activity and exhibiting high durability in various organic reactions. That is, the present invention provides a solid acid catalyst having the structure (A) in which a hydrogen atom is eliminated from at least one of OH groups contained in an inorganic phosphorus acid, the structure (B) in which a hydrogen atom is eliminated from at least one of OH groups contained in an organic phosphorus acid represented by the formula (1) or (2) and at least one metal atom (C) selected from aluminum, gallium and iron and a method for producing an ester, a ketal or an acetal by using the solid acid catalyst; wherein each of —R1 and —R2 is selected from —R, —OR, —OH and —H in which at least one of —R1 and —R2 is —R or —OR, given that —R is an organic group having 1-22 carbon atoms.
    • 本发明提供一种在各种有机反应中显示出高活性和显示高耐久性的固体酸催化剂。 也就是说,本发明提供具有结构(A)的固体酸催化剂,其中从无机磷酸中所含的OH基中的至少一个除去氢原子,其中消除氢原子的结构(B) 由式(1)或(2)表示的有机磷酸中的至少一个OH基和选自铝,镓和铁中的至少一种金属原子(C)和酯的制备方法,缩酮 或通过使用固体酸催化剂的缩醛;其中-R1和-R2各自选自-R,-OR,-OH和-H,其中-R1和-R2中的至少一个是-R或-OR, 假定-R是具有1-22个碳原子的有机基团。