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    • 162. 发明公开
    • Novel asymmetric phosphine ligand
    • 新不对称磷膦配体
    • EP1318156A1
    • 2003-06-11
    • EP02293055.6
    • 2002-12-10
    • Takasago International Corporation
    • Matsumura, Kazuhiko, c/o Takasaga Int. CorpSaito, Takao, c/o Takasaga Int. Corp
    • C07F9/6568C07F9/50C07F15/04C07F15/00B01J31/24C07B53/00
    • C07F15/04B01J31/2295B01J31/2433B01J31/2476B01J2231/645B01J2531/821B01J2531/822B01J2531/824B01J2531/827B01J2531/847C07B53/00C07B2200/07C07C231/18C07F9/5027C07F9/65683C07C233/58
    • A novel phosphine compound having excellent properties (chemical selectivity, enantioselectivity, catalytic activity) as a catalyst for asymmetric syntheses, especially asymmetric hydrogenation. A phosphine-phospholane compound represented by the following general formula:
      wherein R 1 represents hydrogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms; R 2 represents hydrogen atom, or OR 21 , R 21 represents an alkyl group having 1 to 4 carbon atoms, a represents an integer of 1 to 2, b represents an integer of 1 to 3, sum of a and b represents an integer of 2 to 3, provided that at least one of R 1 and R 2 is not hydrogen atoms; R 3 , R 4 , R 5 and R 6 are the same or different, and each represents hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, and R 3 and R 4 , R 4 and R 5 , and/or R 5 and R 6 may be combined to form a ring which may contain at least one oxygen atoms; and R 7 and R 8 are the same or different, and each represents a linear or branched alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 7 carbon atoms, a perfluoroalkyl group, a phenyl group, a phenyl group having at least one substituents each selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkyl group having 1 to 6 carbon atoms which is substituted by one or more halogen atoms, an alkoxy group having 1 to 6 carbon atoms, and a halogen atom, an aralkyl group having 7 to 12 carbon atoms, or a ring-substituted aralkyl group.)
    • 具有优异特性(化学选择性,对映体选择性,催化活性)作为不对称合成催化剂,特别是不对称氢化的新型膦化合物。 由以下通式表示的膦 - 磷脂化合物:其中R 1表示氢原子,具有1至4个碳原子的直链或支链烷基的 R 2表示氢原子,或OR 21,R 21表示碳原子数1〜4的烷基,a表示1〜2的整数,b表示1〜3的整数, 并且b表示2〜3的整数,条件是R 1和R 2中的至少一个不是氢原子; R 3,R 4,R 5和R 6相同或不同,分别表示氢原子,碳原子数1〜6的烷基或碳原子数1〜6的烷氧基 原子,R 3和R 4,R 4和R 5和/或R 5和R 6可以组合形成可以含有至少一个氧原子的环 ; R 7和R 8相同或不同,表示碳原子数1〜6的直链或支链烷基,碳原子数3〜7的环烷基,全氟烷基,苯基, 具有至少一个选自碳原子数1〜6的烷基,碳原子数1〜6的烷基,被一个以上卤素原子取代的烷基的苯基,具有1〜 6个碳原子,卤素原子,碳原子数为7〜12的芳烷基或环取代的芳烷基)