11.
    发明专利
    未知

    公开(公告)号:AT278467T

    公开(公告)日:2004-10-15

    申请号:AT02704673

    申请日:2002-01-26

    Applicant: BASF AG

    Abstract: A compound of formula (I) suitable as a catalyst or for the preparation of a catalyst system: L 1 -X-L 2 (I) is provided, in which X is a lower alkylene group, an arylene group or an alkarylene group; L 1 is in which Y 1 is oxygen, sulfur or N-R 17 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 and R 17 independently of one another being hydrogen, alkyl or aryl; and L 2 is in which Y 2 is oxygen, sulfur or N-R 27 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 and R 27 independently of one another being hydrogen, alkyl or aryl, it being possible for L 1 and L 2 to be identical or different.

    12.
    发明专利
    未知

    公开(公告)号:BR0213869A

    公开(公告)日:2004-08-31

    申请号:BR0213869

    申请日:2002-10-29

    Applicant: BASF AG

    Abstract: A process is described for preparing acid formates in which methyl formate is reacted with water and a basic compound having a pK a of the conjugate acid of the corresponding dissociation state of >=3 measured at 25° C. in aqueous solution, the methanol formed is separated off and, optionally, the desired acid content is set by adding formic acid.

    13.
    发明专利
    未知

    公开(公告)号:BR0206982A

    公开(公告)日:2004-08-03

    申请号:BR0206982

    申请日:2002-01-26

    Applicant: BASF AG

    Abstract: A compound of formula (I) suitable as a catalyst or for the preparation of a catalyst system: L 1 -X-L 2 (I) is provided, in which X is a lower alkylene group, an arylene group or an alkarylene group; L 1 is in which Y 1 is oxygen, sulfur or N-R 17 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 and R 17 independently of one another being hydrogen, alkyl or aryl; and L 2 is in which Y 2 is oxygen, sulfur or N-R 27 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 and R 27 independently of one another being hydrogen, alkyl or aryl, it being possible for L 1 and L 2 to be identical or different.

    15.
    发明专利
    未知

    公开(公告)号:ES2191457T3

    公开(公告)日:2003-09-01

    申请号:ES99946100

    申请日:1999-09-02

    Applicant: BASF AG

    Abstract: The process comprises reacting 2-, 3- or 4-pentenenitrile or mixtures thereof with carbon monoxide and a hydroxyl compound in the presence of a catalyst system comprising (i) a palladium(II) compound, (ii) a bidentate diphosphine ligand and (iii) an anion source. Novel catalyst systems containing diphosphine ligands of the bis(phosphinomethyl)amine type are also described.

    20.
    发明专利
    未知

    公开(公告)号:DE19919174A1

    公开(公告)日:2000-11-09

    申请号:DE19919174

    申请日:1999-04-28

    Applicant: BASF AG

    Abstract: Preparation of hydantoins or aminoacid cyclic anhydrides (I) involves reacting an aldehyde (II) with carbon monoxide and a u or carbamate compound (III) in presence of a transition metal catalyst. Preparation of hydantoins or aminoacid cyclic anhydrides of formula (I) involves reacting an aldehyde RCHO (II) with carbon monoxide and a urea or carbamate compound of formula R3-NH-C(O)-R2 (III) in presence of a transition metal catalyst. X = O or NH; R = alkyl or aryl (both optionally substituted); R3 = H or as defined for R; R2 = group which reacts with the COOH group formed in the reaction under ring-closure to form (I).

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