Patents Assigned to Hoechst Schering
  • Substituted pyridines/pyrimidines, their preparation, and their use as pesticides
    Patent number: 6207668
    Abstract: The present invention relates to novel substituted pyridines/pyrimidines of the formula I where A is CH or N; X is NH, oxygen or S(O)q where q is 0, 1 or 2; Y is a direct bond or CH2; Z is oxygen, NR7 or S(O)m is 0, 1 or 2, and the radicals R1, R2, R3, R4, R5, R6 and R7 are as defined in the description, to processes for their preparation, and to their use as pesticides, fungicides, ovicides or as veterinary medicaments.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: March 27, 2001
    Assignee: Hoechst Schering
    Inventors: Ralf Braun, Wolfgang Schaper, Werner Knauf, Ulrich Sanft, Manfred Kern, Werner Bonin