中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

33 records (took 0.037 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE59601895D1

    公开(公告)日：1999-06-17

    申请号：DE59601895

    申请日：1996-08-06

    Applicant: BASF AG

    Inventor： HEIDER MARC ,  RUEHL THOMAS ,  HENKELMANN JOCHEM ,  STUTZ SUSANNE ,  PREISS THOMAS ,  RUETTER HEINZ ,  SCHAEFER MARTIN ,  HOEHN ARTHUR

    IPC: C07D307/33 ,  B01J31/20 ,  C07B61/00 ,  C07D307/32 ,  C07D307/58 ,  C07D315/00 ,  C07F7/08

    Abstract: PCT No. PCT/EP96/03472 Sec. 371 Date Feb. 12, 1998 Sec. 102(e) Date Feb. 12, 1998 PCT Filed Aug. 6, 1996 PCT Pub. No. WO97/07111 PCT Pub. Date Feb. 27, 1997A process for the preparation of butyrolactones of the formula I where the substituents R1 and R2 are hydrogen, alkyl or hydroxyalkyl groups, or aryl and trialkylsilyl groups, if appropriate carrying inert: substituents, is described in which an alkyne of the formula IIR1-C 3BOND C-R2IIwhere the substituents have the meanings indicated above, is reacted under reducing conditions at elevated pressure and elevated temperature with carbon monoxide CO and hydrogen in the presence of a transition metal catalyst or with carbon monoxide and water in the presence of a transition metal catalyst.

    13.
    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

    Inventor： SLANY MICHAEL ,  SCHAEFER MARTIN ,  ROEPER MICHAEL

    IPC: B01J31/22 ,  B01J31/24 ,  C07B61/00 ,  C07C67/38 ,  C07C69/24 ,  C07C69/34 ,  C07C253/30 ,  C07C255/19 ,  C07F9/50 ,  C07F9/6568

    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.

    18.
    发明专利
    未知

    公开(公告)号：DE19936979A1

    公开(公告)日：2001-02-08

    申请号：DE19936979

    申请日：1999-08-05

    Applicant: BASF AG

    Inventor： SCHAEFER MARTIN ,  SCHULZ MICHAEL

    IPC: B01J23/46 ,  B01J31/02 ,  B01J31/04 ,  B01J31/12 ,  B01J31/20 ,  B01J31/22 ,  C07B61/00 ,  C07C51/14 ,  C07C53/122 ,  C07B41/08

    Abstract: The invention relates to a method of producing carboxylic acids on the basis of olefins and carbon monoxide in the presence of water. The inventive method is characterized by using as a halide-free catalyst system a mixture from a) rhodium or a rhodium compound, b) at least one nitrogenous heterocyclic compound, c) at least one alkaline or alkaline earth salt of an aliphatic C2-C20 carboxylic acid, and d) at least one glycol ether of general formula (I), in which R and R independently represent C1-C20 alkyl, R CO, with R being hydrogen, C1-C20 alkyl or R and R together represent a C1-C20 alkylene chain and n is 1 to 30.

    19.
    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

    Inventor： SLANY MICHAEL ,  SCHULZ MICHAEL ,  SCHAEFER MARTIN ,  ZELLER EDGAR ,  EBEL KLAUS

    IPC: C07D263/08 ,  C07D233/76 ,  C07D263/44

    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).

Patent Agency Ranking