Method of enantioselective addition to enones
    32.
    发明授权
    Method of enantioselective addition to enones 有权
    对映选择性加入烯酮的方法

    公开(公告)号:US08304581B2

    公开(公告)日:2012-11-06

    申请号:US12838970

    申请日:2010-07-19

    IPC分类号: C07C45/62

    摘要: The present invention relates to a method of enantioselective addition to enones, including: reacting R3(CH2)pCH═CR5C(═O)Y(CH2)qR4 with R6ZnR7 in the presence of a compound represented by the following formula (I) and a transition metal catalyst, in which Y, p, q, R1, R2, R3, R4, R5, R6 and R7 are defined the same as the specification. Accordingly, the present invention can perform asymmetric conjugate addition in high yields and enantioselectivity.

    摘要翻译: 本发明涉及一种对映选择性加成烯酮的方法,包括:在下式(I)表示的化合物存在下,使R3(CH2)pCH = CR5C(= O)Y(CH2)qR4与R6ZnR7反应, 其中Y,p,q,R 1,R 2,R 3,R 4,R 5,R 6和R 7的定义与说明书相同。 因此,本发明可以以高收率和对映选择性进行不对称共轭加成。

    Catalyst for asymmetric hydrogenation
    33.
    发明授权
    Catalyst for asymmetric hydrogenation 有权
    非对称氢化催化剂

    公开(公告)号:US08217204B2

    公开(公告)日:2012-07-10

    申请号:US12792016

    申请日:2010-06-02

    IPC分类号: C07C45/62 C07C29/17 B01J31/02

    摘要: This invention aims at providing a catalyst for producing an optically active aldehyde or an optically active ketone, which is an optically active carbonyl compound, by carrying out selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, particularly a catalyst which is insoluble in a reaction mixture for obtaining optically active citronellal which is useful as a flavor or fragrance, by carrying out selective asymmetric hydrogenation of citral, geranial or neral; and a method for producing a corresponding optically active carbonyl compound. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table is supported on a support, an optically active cyclic nitrogen-containing compound and an acid.

    摘要翻译: 本发明的目的在于提供一种用于制备光学活性醛或光学活性酮的催化剂,它是光学活性的羰基化合物,通过进行α,β-不饱和羰基化合物的选择性不对称氢化,特别是不溶于 在用于获得可用作香料或香料的光学活性香茅醛的反应混合物中,通过进行柠檬醛,香叶醛或香精的选择性不对称氢化; 以及制备相应的光学活性羰基化合物的方法。 本发明涉及一种α,β-不饱和羰基化合物的不对称氢化催化剂,它包括选自属于元素周期表第8至第10族金属的至少一种金属的粉末或金属负载物质 其中选自属于元素周期表第8族至第10族的金属中的至少一种金属负载在载体,光学活性环状含氮化合物和酸上。