PROCESS FOR THE PREPARATION OF PYRIMIDINE DERIVATIVES
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF PYRIMIDINE DERIVATIVES 审中-公开
    制备吡嗪衍生物的方法

    公开(公告)号:WO2004103977A3

    公开(公告)日:2005-01-06

    申请号:PCT/EP2004050762

    申请日:2004-05-12

    Abstract: There is described a process for the preparation of compounds of formula (1) starting from the reaction of the compounds of formulae (24), (25) and (26) to form the compound of formula (23), wherein in each case R1, R2 and R3 are each independently of the others an unsubstituted or substituted organic radical; R4 is hydrogen, unsubstituted or substituted C1-C8alkyl, C1-C8alkoxy, phenoxy or benzyloxy, or halogen; Y1 and Y2 are each independently of the other hydrogen or a protecting group, or Y1 and Y2 together are a protecting bridge; and X1 is hydrogen, an organic radical or a cation; and also novel intermediates.

    Abstract translation: 描述了从式(24),(25)和(26)的化合物反应制备式(1)化合物以形成式(23)的化合物的方法,其中在每种情况下R1 ,R2和R3各自独立地为未取代或取代的有机基团; R4是氢,未取代或取代的C1-C8烷基,C1-C8烷氧基,苯氧基或苄氧基或卤素; Y1和Y2各自独立于另一个氢或保护基,或Y1和Y2一起是保护桥; X1是氢,有机基或阳离子; 还有新的中间体。

    PREPARATION OF ALPHA-HYDROXY AND ALPHA-AMINO KETONES
    6.
    发明申请
    PREPARATION OF ALPHA-HYDROXY AND ALPHA-AMINO KETONES 审中-公开
    ALPHA-羟基和氨基 - 氨基酸的制备

    公开(公告)号:WO2006005682A3

    公开(公告)日:2007-01-25

    申请号:PCT/EP2005053060

    申请日:2005-06-29

    Abstract: A process for the preparation of an 1, 1 -disubstituted oxirane is disclosed, wherein an organic sulphide is reacted in a polar solvent with an educt containing a leaving group attached to a primary or secondary carbon atom, and/or the sulfonium salt formed in this way is reacted with a ketone in presence of a base and a polar solvent. Oxiranes of the type obtained may be further converted into the corresponding a-hydroxyketone or a-aminoketone, either in one step by subjecting to aerobic oxidation in the presence of a transition metal catalyst, or in two steps by hydrolyzation in the presence of an aqueous acid to the corresponding dialcohol and subsequent selective oxidation. Further described are some novel epoxide intermediates. The a-hydroxyketones and a-aminoketones thus obtainable are useful inter alga as photoinitiators.

    Abstract translation: 公开了一种制备1,1,1-二取代的环氧乙烷的方法,其中有机硫化物在极性溶剂中与含有连接于伯或仲碳原子的离去基团的离子和/或在 这样在碱和极性溶剂的存在下与酮反应。 所得类型的环氧乙烷可以通过在过渡金属催化剂的存在下进行需氧氧化,或者在水溶液存在下通过水解两步在步骤中进一步转化为相应的α-羟基酮或α-氨基酮 酸对相应的二醇和随后的选择性氧化。 进一步描述了一些新型的环氧化物中间体。 由此获得的α-羟基酮和α-氨基酮可以作为光引发剂用于藻类。

    PROCESS FOR THE PREPARATION OF PYRIMIDINE DERIVATIVES
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF PYRIMIDINE DERIVATIVES 审中-公开
    制备吡嗪衍生物的方法

    公开(公告)号:WO2004103977A2

    公开(公告)日:2004-12-02

    申请号:PCT/EP2004/050762

    申请日:2004-05-12

    Abstract: There is described a process for the preparation of compounds of formula (1) starting from the reaction of the compounds of formulae (24), (25) and (26) to form the compound of formula (23), wherein in each case R 1 , R 2 and R 3 are each independently of the others an unsubstituted or substituted organic radical; R 4 is hydrogen, unsubstituted or substituted C 1 -C 8 alkyl, C 1 -C 8 alkoxy, phenoxy or benzyloxy, or halogen; Y 1 and Y 2 are each independently of the other hydrogen or a protecting group, or Y 1 and Y 2 together are a protecting bridge; and X 1 is hydrogen, an organic radical or a cation; and also novel intermediates.

    Abstract translation: 描述了从式(24),(25)和(26)的化合物的反应开始制备式(1)化合物以形成式(23)的化合物的方法,其中在每种情况下R1 R2和R3各自独立地为未取代或取代的有机基团; R4是氢,未取代或取代的C1-C8烷基,C1-C8烷氧基,苯氧基或苄氧基或卤素; Y1和Y2各自独立于另一个氢或保护基,或Y1和Y2一起是保护桥; X1为氢,有机基或阳离子; 还有新的中间体。

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