PROCEDE POUR L'OBTENTION DE CETONES CYCLOALIPHATIQUES INSATUREES
    3.
    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.

    PROCEDE POUR L'OBTENTION DE CETONES CYCLOALIPHATIQUES INSATUREES
    6.
    发明公开
    PROCEDE POUR L'OBTENTION DE CETONES CYCLOALIPHATIQUES INSATUREES 失效
    用于生产不饱和CYCLOALIFATISCHEN KETONES

    公开(公告)号:EP0775102A1

    公开(公告)日:1997-05-28

    申请号:EP96913678.0

    申请日:1996-05-28

    申请人: FIRMENICH SA

    IPC分类号: C07B61 C07C45 C07C49 C07C67 C07C69

    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.

    ACETALS OF 2,4,7-DECATRIENAL AS PERFUMING OR FLAVORING INGREDIENTS
    8.
    发明授权
    ACETALS OF 2,4,7-DECATRIENAL AS PERFUMING OR FLAVORING INGREDIENTS 有权
    的2,4,7-三decatrienal ALS香水或香味成分缩醛

    公开(公告)号:EP1467959B1

    公开(公告)日:2007-01-10

    申请号:EP03731779.9

    申请日:2003-01-15

    申请人: FIRMENICH SA

    摘要: The present invention relates to the perfume or flavor industry. It concerns more particularly an acetal of formula (I), in which the symbols R represent, independently or simultaneously, a linear or branched saturated or unsaturated C1 to C4 hydrocarbon group; or the two R are bonded together to form a saturated ring having 5 to 7 atoms and including the oxygen atoms to which said R groups are bonded, this ring being possibly substituted by methyl or ethyl groups; and the wavy line indicates that the double bond in position 4 has a configuration of the type (Z) or (E) or a mixture of the two configurations. The invention relates also to the use of such a compound as a perfuming or flavoring ingredient, as well as the perfumed or flavored articles or perfuming or flavoring compositions containing a compound according to the invention.

    ACETALS OF 2,4,7-DECATRIENAL AS PERFUMING OR FLAVORING INGREDIENTS
    9.
    发明公开
    ACETALS OF 2,4,7-DECATRIENAL AS PERFUMING OR FLAVORING INGREDIENTS 有权
    的2,4,7-三decatrienal ALS香水或香味成分缩醛

    公开(公告)号:EP1467959A1

    公开(公告)日:2004-10-20

    申请号:EP03731779.9

    申请日:2003-01-15

    申请人: FIRMENICH SA

    摘要: The present invention relates to the perfume or flavor industry. It concerns more particularly an acetal of formula (I), in which the symbols R1 represent, independently or simultaneously, a linear or branched saturated or unsaturated C¿1? to C4 hydrocarbon group; or the two R?1¿ are bonded together to form a saturated ring having 5 to 7 atoms and including the oxygen atoms to which said R1 groups are bonded, this ring being possibly substituted by methyl or ethyl groups; and the wavy line indicates that the double bond in position 4 has a configuration of the type (Z) or (E) or a mixture of the two configurations. The invention relates also to the use of such a compound as a perfuming or flavoring ingredient, as well as the perfumed or flavored articles or perfuming or flavoring compositions containing a compound according to the invention.