Fragrance composition containing 3-(3-Hexenyl)-2-cyclopentenone
    91.
    发明公开
    Fragrance composition containing 3-(3-Hexenyl)-2-cyclopentenone 有权
    含有3-(3-己烯基)-2-环戊烯酮的香料组合物

    公开(公告)号:EP1321508A2

    公开(公告)日:2003-06-25

    申请号:EP02258616.8

    申请日:2002-12-13

    IPC分类号: C11B9/00 C07C49/647 C11D3/50

    摘要: An excellent fragrance compound having high palatability. A 3- (3-hexenyl)-2-cyclopentenone represented by a general formula (1)
    (wherein wavy line represents a double bond cis-form and/or trans-form) is used as an active ingredient of scent and mixed in a small amount with fragrance compositions, cis-jasmone and/or various materials to be scented. Since the above compound has a characteristic fragrance quality and high palatability, it is markedly useful as a scenting component of various fragrances and cosmetics, sanitation materials and the like.

    摘要翻译: 具有高适口性的优异的香味化合物。 由通式(1)表示的3-(3-己烯基)-2-环戊烯酮(其中波浪线表示双键顺式和/或反式)用作香料的活性成分并混合于 少量香料组合物,顺式茉莉酮和/或各种香料。 由于上述化合物具有特有的芳香质量和高适口性,因此它作为各种香料和化妆品的香味成分,卫生材料等显着有用。

    PROCEDE POUR L'OBTENTION DE CETONES CYCLOALIPHATIQUES INSATUREES
    96.
    发明授权
    PROCEDE POUR L'OBTENTION DE CETONES CYCLOALIPHATIQUES INSATUREES 失效
    用于生产不饱和CYCLOALIFATISCHEN KETONES

    公开(公告)号:EP0775102B1

    公开(公告)日:2000-04-05

    申请号:EP96913678.7

    申请日:1996-05-28

    申请人: FIRMENICH SA

    摘要: The invention concerns cycloaliphatic ketones of formula (I) which have two conjugated double bonds in positions 1 and 3, or 2 and 4, as shown by the dashed lines, and in which formula R defines a C1-C3 alkyl radical. The cycloaliphatic ketones are used as intermediate products in the preparation of jasmonic derivatives and are obtained by an addition reaction between cyclopentanone and an aldehyde of formula (II) of which the double bond has the configuration (E) and in which R has the meaning given above, to provide a dienic cyclopentanone of formula (Ia) E,E. The resulting cyclopentanone is optionally subjected to a heat treatment to give a cyclopentenone of formula (Ib) Z. 2-(E,2'Z)-but-2'-enylidene-cyclopentanone, 2-(1'Z)-but-1'-enyl-cyclopent-2-enone, 2-(E,2'E)-pent-2'-enylidene-cyclopentanone, 2-(Z,2'E)-pent-2'-enylidene-cyclopentanone, 2-(1'Z)-pent-1'-enyl-cyclopent-2-enone, dimethyl [2-(pent-(1'Z)-enyl)-3-oxo-1-cyclopentyl]-malonate malonic esters and dimethyl [2-(but-(1'Z)-enyl)-3-oxo-1-cyclopentyl]-malonate malonic esters are novel chemical compounds.