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    • 2. 发明授权
    • Process for the preparation of optically active amino alcohols
    • 制备光学活性氨基醇的方法
    • US06410749B1
    • 2002-06-25
    • US09889595
    • 2001-07-17
    • Eiji KatayamaDaisuke SatoHirohito OokaTsutomu Inoue
    • Eiji KatayamaDaisuke SatoHirohito OokaTsutomu Inoue
    • C07D20948
    • C07D209/48C07B2200/07C07C231/18C07C269/06C07C303/40C07C311/51C07C233/58C07C271/08C07C271/12
    • Process for preparing optically active &bgr;-amino alcohols represented by a general formula (2): Ra—C*H(OH)—C*H(Rb)—Rc wherein Ra and Rc are each independently hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, Rb is one member selected from among groups represented by the following general formulae; (3) R1CO(R2)N—, and (4) R1CO(R1′CO)N—, and C* is an asymmetric carbon atom, characterized by reacting a racemic &agr;-aminocarbonyl compound represented by the general formula (1): Ra—CO—CH(Rb)—Rc, with hydrogen in the presence of an optically active transition metal compound represented by a general formula (7): MaXY(Px)m(Nx)n wherein Ma represents a metal atom belonging to VIII-group of the periodic law, X and Y represent each independently hydrogen, halogeno, Px represents a phosphine ligand, Nx represents an amine ligand, at least one of Px and Nx is optically active, and m and n each independently represent 0 or an integer of 1 through 4 and a base.
    • 用于制备由通式(2)表示的光学活性β-氨基醇的方法:Ra-C * H(OH)-C * H(Rb)-Rc其中R a和R c各自独立地为氢,任选取代的烷基, 环烷基,Rb是选自下列通式表示的基团中的一个: (3)R1CO(R2)N-和(4)R1CO(R1'CO)N-和C *是不对称碳原子,其特征在于使由通式(1)表示的外消旋α-氨基羰基化合物: 在由通式(7)表示的光学活性的过渡金属化合物的存在下,用氢气将Ra-CO-CH(Rb)-Rc:MaXY(Px)m(Nx)n表示,其中Ma表示属于VIII的金属原子 - 周期定律的组,X和Y各自独立地表示氢,卤素,Px表示膦配体,Nx表示胺配体,Px和Nx中的至少一个是光学活性的,m和n各自独立地表示0或 1到4的整数和一个碱基。