Process for producing optical active 4-hydroxy-2-cyclopentenone
    1.
    发明授权
    Process for producing optical active 4-hydroxy-2-cyclopentenone 失效
    光学活性4-羟基-2-环戊烯酮的制备方法

    公开(公告)号:US5395977A

    公开(公告)日:1995-03-07

    申请号:US31182

    申请日:1993-03-12

    CPC分类号: C07C45/78 C07C45/85

    摘要: A process for producing optically active 4-hydroxy-2-cyclopentenone [1] which comprises reacting 4-hydroxy-2-cyclopentenone represented by the formula: ##STR1## with an optically active propargyl alcohol derivative represented by the general formula: ##STR2## wherein R and R.sup.1 each independently represent a halogenated phenyl group, an alkylphenyl group, or an alkyl group which may be substituted with one or more halogen atom(s), and * indicates an asymmetric carbon atom, to form an optically active complex [3] consisting essentially of optically active 4-hydroxy-2-cyclopentenone represented by the formula [1] ##STR3## wherein * indicates an asymmetric carbon atom, and the optically active propargyl alcohol derivative [2], and then decomposing the optically active complex [3].

    摘要翻译: 一种制备光学活性的4-羟基-2-环戊烯酮的方法[1],其包括使由下式表示的4-羟基-2-环戊烯酮与由下列通式表示的光学活性炔丙醇衍生物反应: 其中R和R 1各自独立地表示卤代苯基,烷基苯基或可以被一个或多个卤素原子取代的烷基,和*表示不对称碳原子以形成光学活性 基本上由式[1]表示的光学活性4-羟基-2-环戊烯酮[3]组成的复合物[3],其中*表示不对称碳原子和光学活性炔丙醇衍生物[2],然后 分解光学活性复合物[3]。