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    SUBSTITUTED 5-FORMYL-1,3-DIOXEPANES, THEIR PREPARATION AND USE AS PERFUMES
    3.
    发明专利
    SUBSTITUTED 5-FORMYL-1,3-DIOXEPANES, THEIR PREPARATION AND USE AS PERFUMES 未知

    公开(公告)号：DE3661012D1

    公开(公告)日：1988-12-01

    申请号：DE3661012

    申请日：1986-10-22

    Applicant: BASF AG

    Inventor： GRAMLICH WALTER DR ,  SIEGEL HARDO DR ,  JAHN DIETER DR

    IPC: C07D321/00 ,  A61K8/49 ,  A61Q13/00 ,  C07D321/06 ,  C07D321/10 ,  C07D407/04 ,  C07D407/06 ,  C11B9/00 ,  C11D3/50 ,  A61K7/46

    Abstract: Substituted 5-formyl-1,3-dioxepans of the general formula I (I) where R1 is a straight-chain or branched alkyl radical of 1 to 10 carbon atoms which may furthermore contain oxygen in the form of an ether group, or a 5-membered to 8-membered ring which is unsubstituted or substituted by alkyl groups and/or an alkylene group, has up to 10 carbon atoms and may furthermore contain oxygen in the form of an ether group, R2 is hydrogen, or R1 and R2 together form an alkylene radical of 4 to 10 carbon atoms which is unsubstituted or substituted by alkyl or alkoxy and may furthermore contain oxygen in the form of an ether group, and R3, R4, R5 and R6 are each hydrogen or methyl, and the total number of carbon atoms is not more than 25, their preparation and their use as scents. Particularly interesting compounds are 2-tert-butyl-5-formyl-1,3-dioxepan, 2-isopropyl-5-formyl-1,3-dioxepan, 2-pentyl-4,7-dimethyl-5-formyl-1,3-dioxepan, 2-(2,4,4-trimethylpentyl)-5-formyl-1,3-dioxepan, 9-formyl-7,12-dioxaspiro[5,6]dodecane and 2,4,4,7,7-pentamethyl-5-formyl-1,3-dioxepan.

    5.
    发明专利
    未知

    公开(公告)号：DE58902198D1

    公开(公告)日：1992-10-08

    申请号：DE58902198

    申请日：1989-09-08

    Applicant: BASF AG

    Inventor： LAUTERBACH GERALD DR ,  PAPE FRANK-FRIEDRICH DR ,  GRAMLICH WALTER DR

    IPC: C07C45/51 ,  C07C47/232

    Abstract: Process for the preparation of alkyl-substituted cinnamaldehydes of the general formula I in which at least one of the radical R , R and R is an alkyl group with up to 8 C atoms, preferably 1 to 4 C atoms, and the radicals R , R and R which are not an alkyl group are hydrogen, which is characterised in that acetylene alcohols of the general formula II in which R , R and R have the abovementioned meaning, are heated in the presence of 55 to 98% strength aqueous formic acid.

    6.
    发明专利
    未知

    公开(公告)号：DE3861060D1

    公开(公告)日：1990-12-20

    申请号：DE3861060

    申请日：1988-05-26

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR ,  GRAMLICH WALTER DR ,  LENGSFELD WOLFGANG DR ,  SCHUSTER LUDWIG DR

    IPC: C07C29/19 ,  C07C31/135 ,  C07C41/01 ,  C07C41/28 ,  C07C43/115 ,  C07C45/51

    Abstract: 4-isopropylcyclohexylmethanol and its alkyl ethers of the general formula I (I) where R1 is H or C1-C4-alkyl, are prepared by a process in which the novel 4-(1-alkoxy-1-methylethyl)-benzaldehyde or its dialkyl acetal of the general formula II (II) where X is oxygen (IIa) or its two R2O groups (IIb) and R2 and R3 are each C1-C4-alkyl, is heated to 100 DEG -250 DEG C., preferably 130 DEG -200 DEG C., under a hydrogen pressure of from 50 to 350, preferably from 150 to 300, bar in the presence of a noble metal of group VIII of the Periodic Table.

    7.
    发明专利
    未知

    公开(公告)号：DE3831713A1

    公开(公告)日：1990-03-22

    申请号：DE3831713

    申请日：1988-09-17

    Applicant: BASF AG

    Inventor： LAUTERBACH GERALD DR ,  PAPE FRANK-FRIEDRICH DR ,  GRAMLICH WALTER DR

    IPC: C07C45/51 ,  C07C47/232

    Abstract: Process for the preparation of alkyl-substituted cinnamaldehydes of the general formula I in which at least one of the radical R , R and R is an alkyl group with up to 8 C atoms, preferably 1 to 4 C atoms, and the radicals R , R and R which are not an alkyl group are hydrogen, which is characterised in that acetylene alcohols of the general formula II in which R , R and R have the abovementioned meaning, are heated in the presence of 55 to 98% strength aqueous formic acid.

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