中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.025 seconds)

    24.
    发明专利
    未知

    公开(公告)号：ES2054961T3

    公开(公告)日：1994-08-16

    申请号：ES89116513

    申请日：1989-09-07

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR

    IPC: B01J31/20 ,  B01J31/26 ,  C07B61/00 ,  C07D325/00 ,  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.

    25.
    发明专利
    未知

    公开(公告)号：ES2044335T3

    公开(公告)日：1994-01-01

    申请号：ES90113714

    申请日：1990-07-18

    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.

    27.
    发明专利
    未知

    公开(公告)号：DE58904614D1

    公开(公告)日：1993-07-15

    申请号：DE58904614

    申请日：1989-09-07

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR

    IPC: B01J31/20 ,  B01J31/26 ,  C07D325/00 ,  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.

Patent Agency Ranking