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    3.
    发明专利
    未知

    公开(公告)号：DE59001156D1

    公开(公告)日：1993-05-13

    申请号：DE59001156

    申请日：1990-05-26

    Applicant: BASF AG

    Inventor： HUELLMANN MICHAEL DR ,  KUEKENHOEHNER THOMAS DR ,  BRENNER KARL ,  BECKER RAINER DR ,  IRGANG MATTHIAS DR ,  SCHOMMER CHARLES DR

    IPC: B01J23/04 ,  B01J23/10 ,  B01J23/12 ,  B01J21/06 ,  C07B61/00 ,  C07C45/30 ,  C07C45/61 ,  C07C45/62 ,  C07C45/66 ,  C07C45/67 ,  C07C45/68 ,  C07C45/72 ,  C07C49/203 ,  C07C49/385

    Abstract: The muscone of the formula I is prepared by bringing open-chain 2,15-diketones of the general formula II CH3-CO-X-CO-CH3 (II> in which X represents one of the radicals -(-CH2-)@(a> -CH=CH-(-CH2-)@CH=CH- (b> -CH2-CH=CH-(-CH2-)@CH=CH-CH2- (c> -CH2-CH2-CH=CH-(-CH2-)@CH=CH-CH2-CH2- (d) or -CH2-CH2-CH2-CH=CH-(-CH2-)@CH=CH-CH2-CH2-CH2- (e), into contact at temperatures of 300 to 400 DEG C in the presence of 5 to 15 % by weight of water, relative to the amount of catalyst, in the gas phase over a fixed-bed catalyst which contains TiO2, CeO2 or ThO2 as the catalytically active compound and hydrogenating catalytically the unsaturated cyclic ketone formed in this reaction by intramolecular aldol condensation. Furthermore, the open-chain unsaturated ketones of the formulae IIb, IIc and IId and advantageous processes for their preparation and their use as intermediates for a simple industrial muscone synthesis are claimed.

    4.
    发明专利
    未知

    公开(公告)号：DE3918015A1

    公开(公告)日：1990-12-06

    申请号：DE3918015

    申请日：1989-06-02

    Applicant: BASF AG

    Inventor： HUELLMANN MICHAEL DR ,  KUEKENHOEHNER THOMAS DR ,  BRENNER KARL ,  BECKER RAINER DR ,  SCHOMMER CHARLES DR ,  IRGANG MATTHIAS DR

    IPC: B01J23/04 ,  B01J23/10 ,  B01J21/06 ,  B01J23/12 ,  C07B61/00 ,  C07C45/30 ,  C07C45/61 ,  C07C45/62 ,  C07C45/66 ,  C07C45/67 ,  C07C45/68 ,  C07C45/72 ,  C07C49/203 ,  C07C49/385

    Abstract: The muscone of the formula I is prepared by bringing open-chain 2,15-diketones of the general formula II CH3-CO-X-CO-CH3 (II> in which X represents one of the radicals -(-CH2-)@(a> -CH=CH-(-CH2-)@CH=CH- (b> -CH2-CH=CH-(-CH2-)@CH=CH-CH2- (c> -CH2-CH2-CH=CH-(-CH2-)@CH=CH-CH2-CH2- (d) or -CH2-CH2-CH2-CH=CH-(-CH2-)@CH=CH-CH2-CH2-CH2- (e), into contact at temperatures of 300 to 400 DEG C in the presence of 5 to 15 % by weight of water, relative to the amount of catalyst, in the gas phase over a fixed-bed catalyst which contains TiO2, CeO2 or ThO2 as the catalytically active compound and hydrogenating catalytically the unsaturated cyclic ketone formed in this reaction by intramolecular aldol condensation. Furthermore, the open-chain unsaturated ketones of the formulae IIb, IIc and IId and advantageous processes for their preparation and their use as intermediates for a simple industrial muscone synthesis are claimed.

    Ketones prodn.
    7.
    发明专利
    Ketones prodn. 未知

    公开(公告)号：DE3920280A1

    公开(公告)日：1991-01-03

    申请号：DE3920280

    申请日：1989-06-21

    Applicant: BASF AG

    Inventor： DOCKNER TONI DR ,  IRGANG MATTHIAS DR ,  RUST HARALD ,  EBEL KLAUS DR ,  SCHOMMER CHARLES DR

    IPC: B01J23/04 ,  C07C45/48 ,  C07D213/50

    Abstract: In a new process for the prodn of ketone of formula R1-C0-R2 (I) by reaction of a carboxylic acid of formula R1-C00H (IIa) with a carboxylic acid of formula (IIb) or with a ketone of formula (Ib) or of a mixture of (IIa), R2-C00H (IIb) and R2C0-R2 (Ia) in the gas phase in the presence of a catalyst, a catalyst is used in which at least 50% of the active mass consists of titanium dioxide and which has a specific surface of greater than 10 sq metres/gramme. In (I)-(IIb) R1, R2 = alkyl, cycloalkyl, arylalkyl, aryl or heteroaryl, at least one of R1 and R2 carrying at least one H-atom in the alpha-position.

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