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    METHOD FOR PRODUCING C5 ACETATE
    1.
    发明专利
    METHOD FOR PRODUCING C5 ACETATE 审中-公开

    公开(公告)号：JP2002326975A

    公开(公告)日：2002-11-15

    申请号：JP2002086904

    申请日：2002-03-26

    Applicant: BASF AG

    Inventor： RHEUDE UDO ,  VICARI MAXIMILIAN ,  AQUILA WERNER ,  WEGNER GUENTER ,  NIEKERKEN JOERG

    IPC: C07C67/04 ,  C07B61/00 ,  C07C67/29 ,  C07C67/297 ,  C07C69/145

    Abstract: PROBLEM TO BE SOLVED: To improve a space time yield in a hydroformylation reaction of 3,4-diacetoxy-1-butene (3,4-DABE) for obtaining a C5 acetate for synthesizing vitamin A and to enhance the economic efficiency thereof. SOLUTION: This method is for producing the C5 acetate for synthesizing vitamin A by the hydroformylation of 3,4-DABE and characterized by using a 3,4-DABE-containing flow obtained by carrying out acetoxylation of 1,3-butadiene with acetic acid and air in the presence of a catalyst and extracting the 3, 4-DABE generated as a byproduct in the case by distillation.

    PRODUCTION OF HIGHER UNSATURATED KETONE
    2.
    发明专利
    PRODUCTION OF HIGHER UNSATURATED KETONE 失效

    公开(公告)号：JP2000178221A

    公开(公告)日：2000-06-27

    申请号：JP32563599

    申请日：1999-11-16

    Applicant: BASF AG

    Inventor： OOST CARSTEN ,  STROEZEL MANFRED ,  ETZRODT HEINZ ,  DIETMAR WELLER ,  RHEUDE UDO ,  KAIBEL GERD ,  KRUG THOMAS ,  SPISKE LUISE ,  HAGEN IEEDIKKE

    IPC: B01J31/14 ,  C07B61/00 ,  C07C45/67 ,  C07C45/74 ,  C07C49/203

    Abstract: PROBLEM TO BE SOLVED: To produce the subject compound useful as an intermediate capable of producing isophytol of a precursor of an essential vitamin E in higher selectivity and higher space time yield by reacting a corresponding α,β-unsaturated alcohol with an alkyl acetoacetate by Carroll reaction. SOLUTION: (A) A corresponding α,β-unsaturated alcohol of formula II is reacted with (B) an alkyl acetoacetate of formula II (R3 is a 1-4C alkyl) in the presence of (C) 0.1-5 mol% organoaluminum compound as a catalyst in a reactor with a fractionating column while eliminating and continuously removing an alcohol of the formula R3-OH and produced carbon dioxide by distillation, and while introducing the components A and C to the reactor, further a calculated amount of the component B thereto preferably at 175-220 deg.C reaction temperature to provide the objective unsaturated ketone of formula I [a dotted line represents an additional C-C bond; R1 is a 1-4C alkyl; R2 is a 4-30C (un)saturated aliphatic or the like].

    Method for producing enol ethers
    5.
    发明专利
    Method for producing enol ethers 未知

    公开(公告)号：AU8626098A

    公开(公告)日：1999-01-04

    申请号：AU8626098

    申请日：1998-06-10

    Applicant: BASF AG

    Inventor： TELES JOAQUIM HENRIQUE ,  RIEBER NORBERT ,  BREUER KLAUS ,  DEMUTH DIRK ,  HIBST HARTMUT ,  ETZRODT HEINZ ,  RHEUDE UDO

    IPC: B01J21/16 ,  C07B61/00 ,  C07C41/08 ,  C07C41/28 ,  C07C43/15 ,  C07C43/16

    Abstract: Enol ethers of the formula Iwhere R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals, which may be bonded to one another to form a ring, and m is 0 or 1, are prepared by reacting an acetal or ketal of the formula IIwith an acetylene or allene of the formula III or IVwhere R and R1 have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a zinc- or cadmium- and silicon- and oxygen-containing heterogeneous catalyst.

    8.
    发明专利
    未知

    公开(公告)号：DE19852691A1

    公开(公告)日：2000-05-18

    申请号：DE19852691

    申请日：1998-11-16

    Applicant: BASF AG

    Inventor： OOST CARSTEN ,  STROEZEL MANFRED ,  ETZRODT HEINZ ,  WELLER DIETMAR ,  RHEUDE UDO ,  KAIBEL GERD ,  KRUG THOMAS ,  SPISKE LUISE ,  JAEDICKE HAGEN

    IPC: B01J31/14 ,  C07B61/00 ,  C07C45/67 ,  C07C45/74 ,  C07C49/203

    Abstract: Preparation of unsaturated ketones by reaction of the corresponding alpha , beta -unsaturated alcohol with an alkyl acetoacetate compound in the presence an organo-aluminum catalyst at constant temperature, with separation and continuous removal of CO2 and alcohol formed. Preparation of unsaturated ketones of formula (I) by reaction of the corresponding alpha , beta -unsaturated alcohol of formula (II) with an alkyl acetoacetate compound of formula (III) in the presence of 0.1-5 mole% (based on (III)) of an organo-aluminum catalyst with separation and continuous distillative removal of CO2 and alcohol of formula R3OH formed during reaction, in a reactor containing a fractionation column, where: (A) (II) is added to the reaction mixture together with the organic catalyst without additional solvent and (III) is then added to this mixture; (B) the reaction temperature is kept constant between 175-220 degrees C; (C) the content of (III) is kept at a constant level between 0.1-10 wt.% during the reaction. R1, R3 = 1-4C alkyl; R2 = 4-30C aliphatic, cycloaliphatic or cycloaliphatic-aliphatic; a, b = optional additional bonds.

    10.
    发明专利
    未知

    公开(公告)号：DE102005019540A1

    公开(公告)日：2006-11-09

    申请号：DE102005019540

    申请日：2005-04-27

    Applicant: BASF AG

    Inventor： EBERHARDT JAN ,  HOFFER BRAM WILLEM ,  SCHWAB EKKEHARD ,  MELDER JOHANN-PETER ,  RHEUDE UDO

    IPC: B01J35/02 ,  B01J23/00 ,  B01J37/00 ,  C07B43/04 ,  C07C209/60 ,  C07C211/03 ,  C07D265/30

    Abstract: Processes for preparing amines comprising reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound in the presence of a heterogeneous catalyst, wherein the heterogeneous catalyst comprises a catalyst packing prepared by applying at least one compound selected from the group consisting of catalytically active metals, compounds of catalytically active metals, and mixtures thereof to a support material selected from the group consisting of woven fabrics, knitted fabrics, foils, and combinations thereof.

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