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    NOVEL SIRTUIN ACTIVATING COMPOUNDS AND METHODS FOR MAKING THE SAME
    12.
    发明公开
    NOVEL SIRTUIN ACTIVATING COMPOUNDS AND METHODS FOR MAKING THE SAME 有权
    新SIRTUINAKTIVIERENDE化合物及其制备方法

    公开(公告)号：EP1753708A4

    公开(公告)日：2007-12-26

    申请号：EP05711939

    申请日：2005-01-19

    申请人： UNIV BRIGHAM YOUNG

    发明人： ANDRUS MERRITT B ,  LIU JING

    IPC分类号： C07C39/215 ,  C07C67/08 ,  C07C67/29 ,  C07C67/293 ,  C07C69/017

    CPC分类号： C07C69/017 ,  C07C67/08 ,  C07C67/14 ,  C07C67/287 ,  C07C67/29 ,  C07C67/293 ,  Y02P20/55 ,  C07C69/716 ,  C07C69/63 ,  C07C69/18 ,  C07C69/16

    摘要： The present invention includes methods for preparing resveratrol, resveratrol esters and substituted and unsubstituted stilbenes of the formula given below; where each Y is —O or halogen, each Z is —O or halogen, each n and each m is independently the value of 0, 1, 2, 3, 4 or 5, each A and each B is independently selected from Pn, R or absent, each V and each W is independently selected from Pn, straight or branched alkyl of from 2 to 6 carbon atoms and cycloalkyl of from 3 to 8 carbon atoms, alkoxy, phenyl, benzyl or halogen, R is independently selected from the group comprising alkyl with at least one carbon atom, aryl and aralkyl, Pn is an alcohol protecting group and diastereoisomers of the foregoing. The compounds are made from a multi-step process including a N-heterocyclic carbene-type ligand coupling in the presence of a base with benzyol halide and styrene coupling partners. These compounds show increased stability for use in the food, cosmetic and pharmaceutical industries.

    PROCESS FOR THE PREPARATION OF HALOGENATED HYDROXYDIPHENYL COMPOUNDS
    18.
    发明公开
    PROCESS FOR THE PREPARATION OF HALOGENATED HYDROXYDIPHENYL COMPOUNDS 有权
    用于生产卤化羟基二CONNECTIONS

    公开(公告)号：EP1320516A1

    公开(公告)日：2003-06-25

    申请号：EP01933893.8

    申请日：2001-04-26

    申请人： Ciba Specialty Chemicals Holding Inc.

    发明人： DI TEODORO, Armando ,  HÖLZL, Werner ,  REINEHR, Dieter ,  ZINK, Rudolf

    IPC分类号： C07C41/26 ,  C07C43/295 ,  C07C67/42 ,  C07C69/017 ,  C07C45/71

    CPC分类号： C07C45/46 ,  C07C41/26 ,  C07C45/71 ,  C07C49/807 ,  C07C49/84 ,  C07C43/295

    摘要： There is described a process for the preparation of halogenated hydroxydiphenyl compounds of formula (1) by acylation of a halogenated benzene compound (first stage), etherification of the acylated compound with a halogenated phenol compound, which is not further substituted in the ortho-position (second stage), oxidation of the etherified compound (third stage) and hydrolysis of the oxidized compound in a fourth stage, wherein the reaction of the second stage is carried out in the presence of K2CO3 and any desired copper catalyst, where K2CO3 is used in a concentration of from 0.5 to 30 mol, based on the phenol compound employed of formula (6), according to the reaction scheme (I) in which R1 and R2 independently of one another are F, Cl or Br; R3 and R4 independently of one another are hydrogen; or C1-C4alkyl; m is 1 to 3; and n is 1 or 2. The compounds of formula (1) are used for protecting organic materials and articles from microorganisms.