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    VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVEM 5-METHYL-2- (1-METHYL-BUTYL)-5-PROPYL-1,3-DIOXAN
    1.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON OPTISCH AKTIVEM 5-METHYL-2- (1-METHYL-BUTYL)-5-PROPYL-1,3-DIOXAN 失效
    METHOD FOR光学活性5-甲基-2-（1-甲基 - 丁基）-5-丙基-1,3-二恶烷的制备

    公开(公告)号：EP0994868B1

    公开(公告)日：2004-06-09

    申请号：EP98939610.6

    申请日：1998-07-03

    申请人： Kao Corporation

    发明人： MARKERT, Thomas ,  MERKEL, Dirk ,  ALTENBACH, Hans-Josef

    IPC分类号： C07D319/06 ,  C11B9/00

    CPC分类号： C11B9/008 ,  C07D319/06

    摘要： The present invention relates to a method for preparing optically active 5-methyl-2-(1-methyl-butyl)-5-propyl-1,3-dioxan, wherein said method comprises the following steps: converting lactic acid methylic ester into the corresponding N,N-disubstituted amid (aminolysis with piperidine and/or pyrrolidine); protecting its free OH function by a reaction with ethylvinylether in the presence of p-pyridiniumtosylate as a catalyst; submitting the N-pentamethylen- or N-tetramethylenlactamide thus obtained to a Grignard reaction in a conventional way so as to produce the corresponding α, β-unsaturated ketone; further separating in a conventional way (e.g. agitation with acetic acid) the protection group introduced during the second step; acetalating in a conventional way the ketone function (e.g. by reaction with 2-methyl-2-propyl-1,3-propanediol); mesylating the free OH function by reaction with methansulfonic acid chloride in pyridine; submitting the intermediate thus obtained to a reducing 1,2-transposition in the presence of triethylaluminium and diisobutylaluminium hydride while maintaining the stereochemistry; and converting by catalytic hydrogenation the dehydro compound thus obtained into optically active 5-methyl-2-(1-methyl-butyl)-5-propyl-1,3-dioxan. The optically active 5-methyl-2-(1-methyl-butyl)-5-propyl-1,3-dioxan of the present invention exhibits a remarkable scent profile as well as a high scent intensity and may be used as perfume.

    VERWENDUNG VON MONOCYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE
    6.
    发明授权
    VERWENDUNG VON MONOCYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE 有权
    使用单醛作为香水

    公开(公告)号：EP1078028B1

    公开(公告)日：2005-08-03

    申请号：EP99920865.5

    申请日：1999-04-08

    申请人： Kao Corporation

    发明人： MARKERT, Thomas

    IPC分类号： C11B9/00 ,  A61K7/46

    CPC分类号： C11B9/0003 ,  C11B9/0034

    摘要： The invention relates to the utilization of monocyclic aldehydes as odoriferous agents, obtained by partial or total hydroformylation of (di)methyl-substituted cyclooct(adi)enes. Said compounds are also characterized by good adhesive strength and propagating ability. Furthermore, said compounds also act as odor boosters.

    VERWENDUNG VON BICYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE
    7.
    发明授权
    VERWENDUNG VON BICYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE 有权
    使用双环醛作为香水

    公开(公告)号：EP1078027B1

    公开(公告)日：2004-12-22

    申请号：EP99920864.8

    申请日：1999-04-08

    申请人： Kao Corporation

    发明人： MARKERT, Thomas

    IPC分类号： C11B9/00 ,  A61K7/46

    CPC分类号： C11B9/0049 ,  C11B9/0003

    摘要： The invention relates to the utilization of bicyclic aldehydes as odoriferous agents, obtained by partial or total hydroformylation of optionally (di)methyl-substituted bicyclo[3.3.0]oct(adi)enes. Said compounds are also characterized by good adhesive strength and propagating ability. Furthermore, said compounds also act as odor boosters.

    VERWENDUNG VON HEXENAL-DERIVATEN ALS RIECHSTOFFE
    8.
    发明授权
    VERWENDUNG VON HEXENAL-DERIVATEN ALS RIECHSTOFFE 有权
    衍生物的使用己烯醛作为香水

    公开(公告)号：EP1476527B1

    公开(公告)日：2007-04-11

    申请号：EP03706463.1

    申请日：2003-02-10

    申请人： KAO CORPORATION

    发明人： MARKERT, Thomas ,  SPEITKAMP, Marc ,  RITTLER, Frank

    IPC分类号： C11B9/00 ,  C07C47/21 ,  A61Q13/00

    CPC分类号： C11B9/0015 ,  C07C45/515 ,  C07C47/21

    摘要： The invention relates to hexenal derivatives of general structure (I), in which one of the bonds represented by dashes is a C-C single bond and the other is a C=C double bond, with the proviso that the C=C double bond can have a Z or E configuration, provided that it is in the C3/4 position. Said derivatives are characterised by an interesting and original perfume that pervades a wide area and are suitable for use as perfumes, for example in cosmetic preparations, technical products or the alcohol-based perfume industry.

    Dimethylbenzol-Derivate als Riechstoffe
    9.
    发明授权
    Dimethylbenzol-Derivate als Riechstoffe 有权
    二甲苯衍生物作为香料

    公开(公告)号：EP1296918B1

    公开(公告)日：2006-12-13

    申请号：EP01969312.6

    申请日：2001-06-23

    申请人： KAO CORPORATION

    发明人： MARKERT, Thomas ,  FABER, Werner ,  TEN PIERIK, Theo

    IPC分类号： C07C33/20 ,  C11B9/00 ,  C07C43/164 ,  C07C43/166 ,  C07C69/14 ,  C07C69/007

    CPC分类号： C11B9/0061 ,  C07C33/20 ,  C07C43/164 ,  C07C43/166 ,  C07C69/007

    摘要： The invention relates to dimethylbenzene derivatives of general structure (I), wherein X represents a group (C=CH2) or a group CH(CH3) with the proviso that if X represents a group (C=CH2), the radical R1 represents an alkyl radical with 1 to 10 C atoms or an alkenyl radical with 2 to 10 C atoms; and if X represents a group CH(CH¿3?), the radical R?1¿ represents hydrogen, an alkyl radical with 1 to 10 C atoms which can either be saturated or unsaturated, branched or unbranched, an acyl radical with 1 to 10 C atoms, a cycloalkyl radical with 1 to 10 C atoms, or an aryl radical. Said derivatives are characterised by an interesting and original aroma characteristic with a strong emanation, and are suitable for use as aromatic substances, for example in cosmetic preparations, technical products or alcoholic perfumery.

    VERWENDUNG VON TRICYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE
    10.
    发明授权
    VERWENDUNG VON TRICYCLISCHEN ALDEHYDEN ALS RIECHSTOFFE 有权
    使用三环醛作为香水

    公开(公告)号：EP1078026B1

    公开(公告)日：2005-07-27

    申请号：EP99920863.0

    申请日：1999-04-08

    申请人： Kao Corporation

    发明人： MARKERT, Thomas

    IPC分类号： C11B9/00 ,  A61K7/46

    CPC分类号： C11B9/0042 ,  C07C45/50 ,  C11B9/0003 ,  C07C47/347

    摘要： The invention relates to the utilization of tricyclic aldehydes as odoriferous agents, obtained by partial or total hydroformylation of optionally (di)methyl-substituted tricyclo[5.2.1.02,6]dec(adi)enes, whereby tricyclo[5.2.1.02,6]decanaldehyde is excluded. Said compounds are also characterized by good adhesive strength and propagating ability. Furthermore, said compounds also act as odor boosters.