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    22.
    发明专利
    未知

    公开(公告)号：DE3924720A1

    公开(公告)日：1991-01-31

    申请号：DE3924720

    申请日：1989-07-26

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR ,  ROEPER MICHAEL DR

    IPC: B01J31/24 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02

    Abstract: Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula I Ar-SH I where Ar is substituted or unsubstituted aryl.

    24.
    发明专利
    未知

    公开(公告)号：DE3902892A1

    公开(公告)日：1990-08-02

    申请号：DE3902892

    申请日：1989-02-01

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  KOEFFER DIETER DR

    IPC: B01J31/20 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02

    Abstract: Preparation of 2,2-dialkylpropionaldehydes I … … in which R and R stand for C1- to C4-alkyl groups, by hydroformylation of 1,1-dialkylethylenes II … … with cobalt carbonyl complexes by… (a) carrying out the reaction in the presence of water-containing solvents in which water is soluble or at least partially soluble, the water content of the reaction mixture being between 0.1 and 20% by weight, or… (b) carrying out the reaction in the presence of a lactone which can carry one or more C1- to C4-alkyl groups as substituents, or of an aliphatic or cycloaliphatic sulphone.

    25.
    发明专利
    未知

    公开(公告)号：DE3831327A1

    公开(公告)日：1990-03-29

    申请号：DE3831327

    申请日：1988-09-15

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR

    IPC: C07D325/00 ,  B01J31/20 ,  B01J31/26 ,  C07B61/00 ,  C07C41/48 ,  C07C43/315

    Abstract: 1,1,2-Trialkoxyethanes of the general formula I (I) where R1 to R3 are each independently of the others C1-C20-alkyl or cycloalkyl, or R1 and R2 may be linked together to form a 5-, 6- or 7-membered ring, are prepared by reacting formaldehyde dialkyl acetals of the general formula II (II) where R1 and R2 are each as defined above, or compounds which are capable of forming formaldehyde dialkyl acetals under the reaction conditions, with carbon monoxide, hydrogen and alkanols R3OH under superatmospheric pressure at elevated temperature in the presence of a catalyst composed of a cobalt carbonyl compound and a promotor, wherein the promotor is an alkali metal, alkaline earth metal or ammonium salt of a protogenic compound having an acid constant Ka of from 10-2 to 10-14, an alkali metal or alkaline earth metal hydroxide or an aminocarboxylic acid.

    29.
    发明专利
    未知

    公开(公告)号：DE3719938A1

    公开(公告)日：1988-12-29

    申请号：DE3719938

    申请日：1987-06-15

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  MAERKL ROBERT DR ,  ROEPER MICHAEL DR

    IPC: C07B61/00 ,  B01J31/20 ,  C07C67/313 ,  C07C67/38 ,  C07C69/67

    Abstract: omega -Formylalkanecarboxylic esters are prepared by hydroformylation of alkenecarboxylic esters with carbon monoxide and hydrogen at elevated temperature and under elevated pressure in the presence of cobalt carbonyl complexes, in which alpha , beta -unsaturated alkenecarboxylic esters are hydroformylated in the presence of 0.01 to 1 mol% of cobalt carbonyl complexes, calculated as cobalt, while maintaining a conversion of alpha , beta -unsaturated alkenecarboxylic esters of 10 to 70 %.

    30.
    发明专利
    未知

    公开(公告)号：DE3719936A1

    公开(公告)日：1988-12-29

    申请号：DE3719936

    申请日：1987-06-15

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DR ,  MERGER FRANZ DR ,  BERTLEFF WERNER DR ,  FISCHER ROLF DR

    IPC: B01J31/20 ,  C07B61/00 ,  C07C51/00 ,  C07C51/09 ,  C07C55/14 ,  C07C67/00 ,  C07C67/29 ,  C07C67/333 ,  C07C67/347 ,  C07C67/38 ,  C07C67/39 ,  C07C69/44 ,  C07C69/67

    Abstract: The preparation of adipic acid comprises the following steps: a) hydroformylation of pentenoic esters by reaction with carbon monoxide and hydrogen at elevated temperature and under elevated pressure in the presence of cobalt carbonyl or rhodium carbonyl complexes with the formation of a mixture comprising 5-, 4- and 3-formylvaleric esters b) separating the 5-formylvaleric esters from the mixture thus obtained of 5-, 4- and 3-formylvaleric esters, leaving a mixture substantially comprising 4- and 3-formylvaleric esters behind c) dehydrocarbonylation of the mixture substantially comprising 4- and 3-formylvaleric esters in the presence of at least one element from Subgroup VIII of the Periodic Table at a temperature of 50 to 400 DEG C with the formation of pentenoic esters, which are recycled into step a) for hydroformylation d) oxidation of the 5-formylvaleric esters from step b) with molecular oxygen or gases containing such oxygen to give monoadipates and e) hydrolysis of the monoadipate to give adipic acid.

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