METHOD FOR ALDOL REACTION IN WATER
    3.
    发明授权
    METHOD FOR ALDOL REACTION IN WATER 有权
    程序对实现在水中的醛醇

    公开(公告)号:EP1375464B1

    公开(公告)日:2009-03-04

    申请号:EP02703945.2

    申请日:2002-03-08

    CPC classification number: C07C45/511

    Abstract: A method for an aldol reaction in water, characterized in that an aldehyde and an silyl enol ether is reacted in water as a medium in the presence of a boronic acid represented by the general formula (1): R R BOH (1) wherein R and R are hydrocarbon groups which may be the same or different and may have a substituent, a surfactant and a Brfnsted acid. The method for an aldol reaction in water allows the production of a product with high selectivity in high yield by the use of a boron source in an catalytic amount.

    PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE HYDROXYMETHYLATED COMPOUNDS AND CATALYST THEREFOR
    4.
    发明公开
    PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE HYDROXYMETHYLATED COMPOUNDS AND CATALYST THEREFOR 有权
    工艺制备光学活性羟甲基化的化合物和催化剂THEREFOR

    公开(公告)号:EP1852412A1

    公开(公告)日:2007-11-07

    申请号:EP06712459.4

    申请日:2006-01-27

    Abstract: A silicon enolate represented by the following formula (Formula 1)

    (in the formula, R 5 to R 7 represent hydrogen atoms, aliphatic hydrocarbon groups, monocyclic or polycyclic alicyclic hydrocarbon groups, monocyclic or polycyclic aromatic or aromatic-aliphatic hydrocarbon groups or heterocyclic groups, R 5 and R 7 are different, R 6 is not a hydrogen atom, each R 8 may be identical or different and represents a methyl group, ethyl group or isopropyl group) and formaldehyde are allowed to react in an aqueous solution or a mixed solvent of water and an organic solvent in the presence of a catalyst obtained by mixing a ligand comprising a chiral bipyridine compound or its antipode and Bi(OTf) 3 .

    Abstract translation: 由下式(式1)(式中,R 5〜R 7表示的硅烯醇表示氢原子,脂族烃基,单环或多环脂环族烃基,单环或多环芳族或芳族 - 脂族烃基或杂环基团 中,R 5和R 7是不同的,R 6不是氢原子,各R 8可以相同或不同,并且darstellt甲基,乙基或异丙基)和甲醛被允许在水溶液或混合反应 溶剂的水和有机溶剂中通过混合的配位体,包括手性联吡啶化合物或与其对映体和Bi(OTF)获得的催化剂的存在下进行。3

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