中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.02 seconds)

    5.
    发明专利
    未知

    公开(公告)号：DE3771937D1

    公开(公告)日：1991-09-12

    申请号：DE3771937

    申请日：1987-06-02

    Applicant: BASF AG

    Inventor： LERMER HELMUT ,  HOELDERICH WOLFGANG ,  SCHWARZMANN MATTHIAS

    IPC: B01J27/00 ,  C07B61/00 ,  C07D207/32 ,  C07D207/33 ,  C07D207/333 ,  C07D207/36 ,  C07D307/46 ,  C07D307/48 ,  C07D307/58 ,  C07D333/22 ,  C07D333/24 ,  C07D333/32

    Abstract: Acylated heteroatomatic cpds. of formula (I) in which X is O, S or NR5, R2-R4 are H, 1-12C alkyl, 1-12C alkenyl, 1-12C alkoxy, aryl, aralkyl or alkylaryl gp., R5 is H, 1-12C alkyl, 1-12C alkenyl, aryl, aralkyl or alkylaryl gp., and R6 is H, 1-12C alkyl, 1-12C alkenyl, aryl, aralkyl, alkylaryl or COOH gp., are prepd. by reacting a 5-membered heteroaromatic cpd. of formula (II) in which R1-R4 are H, 1-12C alkyl, 1-12C alkenyl, 1-12C alkoxy, aryl, aralkyl cr alkylaryl gp. R2-R5 are as above and at least one ofR1-R4 are H, with an acylating agent R6-CO-Y (III) in which Y is halide, alkoxy, acyloxy, hydroxy, amide or carboxyl gp., in the presence of zeolites as catalyst. Specifically claimed catalysts are e.g. zeolites of the Pentasil type, alumino-silicate zeolites, borosilicate zeolites, iron silicate zeolites, Faujasite and ultrastable faujasite type zeolites, alkali(ne earth) metal doped zeolites, transition metal doped zeolites, rare earth doped zeolites, Cs-doped zeolites, Ce and/or La doped zeolites, P doped zeolites and acid treated zeolites.

Patent Agency Ranking