Chiral pyridylphosphines and their application in asymmetric catalytic
hydrogenation of 2-arylpropenoic acids
    2.
    发明授权
    Chiral pyridylphosphines and their application in asymmetric catalytic hydrogenation of 2-arylpropenoic acids 失效
    手性吡啶基膦及其在2-芳基丙烯酸的不对称催化氢化中的应用

    公开(公告)号:US5886182A

    公开(公告)日:1999-03-23

    申请号:US988376

    申请日:1997-12-10

    IPC分类号: C07F9/58 C07F9/6568 C07F9/50

    CPC分类号: C07F9/65683 C07F9/587

    摘要: Novel, optically active phosphorous compounds of the formula, ##STR1## wherein R.sup.1 represents hydrogen atoms, straight or branched-chain alkyl groups having from 1 to 6 carbon atoms, R.sup.2 represents hydrogen atoms, halogen atoms, lower alkyl groups (1 to 6 carbon atoms), lower alkoxy groups (1 to 6 carbon atoms), hydroxy group, chiral hydroxyalkyl groups, and amino groups (1.degree., 2.degree., 3.degree.) vinyl groups or allyl groups and R.sup.3 represents phenyl groups, aryl groups, cyclohexyl groups, substituted and unsubstituted cycloalkyl groups, heteroaromatic rings, are described. The compounds of the formula serve as highly useful ligands in the preparation of ruthenium complexes which are effective catalysts for the asymmetric hydrogenation of 2-arylpropenoic acids leading to high valued 2-arylpropionic acids.

    摘要翻译: 新型的具有下式的光学活性的磷化合物,其中R1代表氢原子,具有1-6个碳原子的直链或支链烷基,R2代表氢原子,卤素原子,低级烷基(1-6个碳原子) 原子),低级烷氧基(1至6个碳原子),羟基,手性羟基烷基和氨基(1,2,3)乙烯基或烯丙基,R 3表示苯基,芳基,环己基 ,取代和未取代的环烷基,杂芳环。 该配方的化合物在钌配合物的制备中起着非常有用的配体作用,这是用于2-芳基丙烯酸的不对称氢化的有效催化剂,导致高价值的2-芳基丙酸。

    1,1'-Bi-2-Naphthol Derivatives Having (Meth)acrylate Groups
    3.
    发明申请
    1,1'-Bi-2-Naphthol Derivatives Having (Meth)acrylate Groups 审中-公开
    具有(甲基)丙烯酸酯基团的1,1'-双-2-萘酚衍生物

    公开(公告)号:US20100274040A1

    公开(公告)日:2010-10-28

    申请号:US12499563

    申请日:2009-07-08

    IPC分类号: C07C69/76

    CPC分类号: C07C69/54

    摘要: The present invention relates to 1,1′-bi-2-naphthol derivatives having (meth)acrylate groups, which can be used for preparing photocurable coating and has a refractive index of 1.53 or more. By using the present 1,1′-bi-2-naphthol derivatives, optical components with high refractive index and less light dispersion can be produced.

    摘要翻译: 本发明涉及具有(甲基)丙烯酸酯基的1,1'-双-2-萘酚衍生物,其可用于制备光固化涂层,折射率为1.53以上。 通过使用本发明的1,1'-双-2-萘酚衍生物,可以制得具有高折射率和较少光散射性的光学部件。