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    53.
    发明专利
    未知

    公开(公告)号：DE3617177A1

    公开(公告)日：1987-11-26

    申请号：DE3617177

    申请日：1986-05-22

    Applicant: BASF AG

    Inventor： ECKHARDT HEINZ DR ,  GRAMLICH WALTER DR ,  BEST WALTER DR ,  HALBRITTER KLAUS DR

    IPC: B01J27/10 ,  B01J27/18 ,  B01J27/232 ,  B01J31/02 ,  C07B61/00 ,  C07D307/32 ,  C07D307/33 ,  C07D315/00 ,  C07D307/58

    Abstract: gamma -butyrolactones of the general formula I (I) where R1 is hydrogen or alkyl of 1 to 4 carbon atoms which may be substituted by lower alkoxy or acyloxy and R2 is hydrogen or straight-chain or branched alkyl which is unsubstituted or substituted by a functional group or is aryl, are prepared by reacting an alkylene oxide of the general formula II (II) with an acylacetate of the general formla III (III) where R1 and R2 have the above meanings and R3 and R4 are each alkyl of 1 to 6 carbon atoms or aryl, and R4 may furthermore be hydrogen, in the presence of a catalyst at elevated temperatures, by a process in which the reaction is carried out in the presence of an alkali metal halide, of an ammonium halide, preferably a quaternary ammonium halide, of a phosphonium halide, of an alkali metal phosphate or of an alkali metal carbonate at from 20 DEG to 200 DEG C. and under from 1 to 50 bar.

    54.
    发明专利
    未知

    公开(公告)号：DE3539468A1

    公开(公告)日：1987-05-14

    申请号：DE3539468

    申请日：1985-11-07

    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 ,  C07D493/10 ,  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.

    55.
    发明专利
    未知

    公开(公告)号：DE3539467A1

    公开(公告)日：1987-05-14

    申请号：DE3539467

    申请日：1985-11-07

    Applicant: BASF AG

    Inventor： GRAMLICH WALTER DR ,  SIEGEL HARDO DR

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

    Abstract: Substituted 4-methyl-4,7-dihydro-1,3-dioxepins of the general formula I (I) where R1 is an alkyl of 1 to 12 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, and R2, R3 and R4 are each hydrogen or methyl, with the exception of the compound 2-tert-butyl-4,7-dihydro-4,7-dimethyl-1,3-dioxepin, the preparation of substituted 4-methyl-4,7-dihydro-1,3-dioxepins and their use as scents and aromas, and scent compositions containing these compounds.

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