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    51.
    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.

    52.
    发明专利
    未知

    公开(公告)号：DE3883303D1

    公开(公告)日：1993-09-23

    申请号：DE3883303

    申请日：1988-06-08

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  FISCHER ROLF DR ,  KUMMER RUDOLF DR ,  MERGER FRANZ DR ,  SCHNEIDER HEINZ-WALTER DR

    IPC: C07B61/00 ,  C07C67/313 ,  C07C67/333 ,  C07C67/38 ,  C07C69/533 ,  C07C69/66 ,  C07C69/67 ,  C07C69/716

    Abstract: Prodn. of 5-formylvalerate esters (I) is carried out by : (a) hydroformylation of pentenate esters (II) with CO and H2 at elevated temp. and pressure in the presence of carbonyl complexes (III) of gp. VIII metals, to give a mixt. (IV) of 5-, 4- and 3-formylvalerate esters; (b) sepn. of (I) from (IV), leaving a mixt. (V) of 4- and 3-formylvalerate esters; (c) catalytic cracking of (V) at 50-400 deg. C, to give (II), which (d) are recirculated to stage (a). In stage (a), the Co concn. is pref. 0.05-0.3 mole-% w.r.t. (II), the (II) conversion is 10-50% and the temp. 60-160 deg. C. In stage (c), the catalyst pref. contains gp. VIII metal(s) and pref. is a supported catalyst contg. at least 2 gp. VIII noble metals or at least one gp. VIII noble metal plus Fe, Co and/or Ni. Pref. it may also contain Cu, Ag, Zn, Ti, V, Cr, Mo, W, Mn and/or Re. Cracking is carried out at 60-350 deg. C in (gas contg.) O2, pref. with a (V):O2 molar ratio of 1:0.05-3 and opt. in a diluent, esp. water and/or 1-6C alkanol(s).

    54.
    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.

    56.
    发明专利
    未知

    公开(公告)号：DE3879546D1

    公开(公告)日：1993-04-29

    申请号：DE3879546

    申请日：1988-05-31

    Applicant: BASF AG

    Inventor： KUMMER RUDOLF DR ,  BERTLEFF WERNER DR ,  ROEPER MICHAEL DR

    IPC: C07C45/51 ,  C07C45/78 ,  C07C45/81 ,  C07C47/19

    Abstract: Prodn. of carbonyl cpds. (I) comprises catalytic isomerisation of allyl alcohol deriv. (II) in presence of a Rh cpd. at 80-180 deg. C. The new features are that (1) reaction is in a tert. phosphine or phosphite; (2) a carrier gas is passed through the reaction mixt. and (3) (I) is sepd. from the withdrawn gas stream by cooling. Specifically, (I) and (II) are of formulae R3R4CH.CHR2.COR1 and R3R4C=CR2-C(OH)HR1 (R1 and R4 = H or Me; or together a 3-6C, aliphatic or olefinic chain; R2 = H, Me or alkoxycarbonyl; R3 = H, Me or CH2OH).

    60.
    发明专利
    未知

    公开(公告)号：DE3719933A1

    公开(公告)日：1988-12-29

    申请号：DE3719933

    申请日：1987-06-15

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  FISCHER ROLF DR ,  KUMMER RUDOLF DR ,  MERGER FRANZ DR ,  SCHNEIDER HEINZ-WALTER DR

    IPC: C07B61/00 ,  C07C67/313 ,  C07C67/333 ,  C07C67/38 ,  C07C69/533 ,  C07C69/66 ,  C07C69/67 ,  C07C69/716

    Abstract: The preparation of 5-formylvaleric esters comprises the following steps… a) hydroformylation of pentenoic esters by reaction with carbon monoxide and hydrogen at elevated temperature and pressure in the presence of carbonyl complexes of metals from Group VIII of the Periodic Table with the formation of a mixture of 5-, 4- and 3-formylvaleric esters… b) separation of 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) cleavage of the mixture substantially comprising 4- and 3-formylvaleric esters to give pentenoic esters at a temperature of 50 to 400 DEG C in the presence of catalysts and… d) recycling of the pentenoic esters into step a.

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