ADAMANTANEMETHANOL DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF
    32.
    发明公开
    ADAMANTANEMETHANOL DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF 审中-公开
    维他命MADHANOL-DERIVATE UND VERFAHREN ZU IHRER HERSTELLUNG

    公开(公告)号:EP0990632A1

    公开(公告)日:2000-04-05

    申请号:EP99917071.5

    申请日:1999-04-21

    摘要: An adamantanemethanol derivative of the invention is represented by the following formula (1), wherein R a is a hydrogen atom or a hydrocarbon group; R b is a hydrocarbon group having a carbon atom, to which carbon atom at least one hydrogen atom is bonded, at a bonding site with the adjacent carbon atom; R c , R d and R e are each a hydrogen atom, a hydroxyl group which may be protected by a protective group or the like; provided that a hydroxyl group protected by a protective group or the like is bonded to at least one carbon atom constituting the adamantane skeleton when R a is a hydrogen atom or a methyl group and R b is a methyl group; and at least one substituent, in addition to the HO-C(R a )(R b )- group indicated in the formula (1), is bonded to the adamantane ring when one of R a and R b is a methyl group and the other is an ethyl group.

    摘要翻译: 本发明的金刚烷甲醇衍生物由下式(1)表示,其中R a是氢原子或烃基; R b是在与相邻碳原子的键合位置处具有与碳原子键合至少一个氢原子的碳原子的烃基; R c,R d和R e各自为氢原子,可被保护基等保护的羟基; 条件是当R a为氢原子或甲基且R b为甲基时,由保护基等保护的羟基与构成金刚烷骨架的至少一个碳原子键合; 并且除了式(1)中所示的HO-C(R a)(R))基团之外,至少一个取代基与R a和R R之一键合到金刚烷环上 b是甲基,另一个是乙基。

    Method of preparing an alcohol
    34.
    发明公开
    Method of preparing an alcohol 失效
    伊斯法罕zur Herstellung eines Alkohols。

    公开(公告)号:EP0585053A1

    公开(公告)日:1994-03-02

    申请号:EP93306562.5

    申请日:1993-08-19

    摘要: The present invention relates to a method of preparing an alcohol by reducing a carboxylic acid or a derivative thereof, more particularly, a method of preparing an alcohol by a reduction reaction in the presence of a zirconium-titanium oxide catalyst. A carboxylic acid or a carboxylic acid derivative is converted into a corresponding alcohol by a reduction reaction in the presence of a zirconium-titanium oxide catalyst using an alcohol as a hydrogen source. An alcohol can be prepared in a high yield in the present invention. To be more specific, the method of the present invention can convert a higher fatty acid or a carboxylic acid derivative, which has given a corresponding alcohol in a low yield in the presence of a zirconium catalyst alone, into the corresponding alcohol in a high yield. Further, the reaction can be performed easily, and the product can be easily separated from the catalyst.

    摘要翻译: 本发明涉及通过还原羧酸或其衍生物制备醇的方法,更具体地说,涉及在锆 - 氧化钛催化剂存在下,通过还原反应制备醇的方法。 在使用醇作为氢源的锆 - 氧化钛催化剂的存在下,通过还原反应将羧酸或羧酸衍生物转化为相应的醇。 在本发明中可以高产率制备醇。 更具体地说,本发明的方法可以将在单独的锆催化剂存在下以低收率给出相应的醇的高级脂肪酸或羧酸衍生物以高产率转化成相应的醇 。 此外,反应可以容易地进行,并且产物可以容易地与催化剂分离。

    Chiral organometallic complexes and uses thereof
    35.
    发明公开
    Chiral organometallic complexes and uses thereof 失效
    Chirale有机金属Komplexe und deren Verwendung。

    公开(公告)号:EP0426474A1

    公开(公告)日:1991-05-08

    申请号:EP90311978.2

    申请日:1990-11-01

    摘要: Compounds having the general formula:
    wherein

    (i) Cp is either a cyclopentadienyl ligand having the formula C₅(R³)₅ where the R³ groups are independently hydrogen, methyl or ethyl or an indenyl ligand;
    (ii) Z is a ligand having the formula X(R⁴)₂(Y) wherein X is selected from phosphorus, arsenic or antimony; the R⁴ groups are independently aryl or aroxy and Y is selected from -R⁵ -NHR⁵ and -OR⁵ wherein R⁵ is a hydrocarbyl group;
    (iii) the R groups are independently hydrogen, halogen or C₁ to C₄ alkyl;
    (iv) R¹ is selected from hydrogen, C₁ to C₆ alkyl, benzyl and -CO₂R⁶ where R⁶ is C₁ to C₆ alkyl;
    (v) R² is selected from hydrogen, C₁ to C₁₀ alkyl, phenyl and benzyl, and
    (vi) B is either R or COY wherein Y is selected from -NHR⁷, -OR⁷ and -SR⁷ where R⁷ is a hydrocarbyl group
    is provided. The compounds are efficient asymmetric hydrogenating agents for prochiral carbonyl containing compounds when used in single enantiomer form.

    摘要翻译: 具有以下通式的化合物:其中(i)Cp为具有式C 5(R 3)5的环戊二烯基配位体,其中R 3基团独立地为氢,甲基或乙基或茚基配体; (ⅱ)Z是具有式X(R 4)2(Y)的配体,其中X选自磷,砷或锑; R 4基团独立地为芳基或芳氧基,Y选自-R 5 -NHR 5和-OR 5,其中R 5为烃基; (iii)R基团独立地为氢,卤素或C 1至C 4烷基; (iv)R 1选自氢,C 1至C 6烷基,苄基和-CO 2 R 6,其中R 6为C 1至C 6烷基; (v)R 2选自氢,C 1至C 10烷基,苯基和苄基,和(vi)B是R或COY,其中Y选自-NHR 7,-OR 7和-SR 其中R 7是烃基。 当以单一对映异构体形式使用时,化合物是用于前手性羰基化合物的有效不对称氢化剂。