Hetero Ring Containing Patents (Class 504/209)
  • Patent number: 5278134
    Abstract: The present invention relates to new 3-(aminooxoacetyl)-2-(2-imidazolin-2-yl)pyridines and their salts, having herbicidal activity.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: January 11, 1994
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Dae W. Kim, Hae S. Chang, Dong J. Jeon, Jae W. Ryu, In T. Hwang
  • Patent number: 5199968
    Abstract: Oxalic acid derivatives of the formula IA--CO--COO--Y--X--D Iwhere A is an unsubstituted or substituted azetidine ring which is bonded via its nitrogen atom, Y is unsubstituted or substituted alkylene, X is oxygen or sulfur and D is unsubstituted or substituted alkyl or alkenyl or is monocyclic or polycyclic unsubstituted or substituted cycloalkyl, cycloalkylmethyl, cycloalkenyl or cycloalkenylmethyl or unsubstituted or substituted phenyl, phenylalkyl or phenylalkenyl, their preparation and growth regulators containing them.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: April 6, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Costin Rentzea, Wilhelm Rademacher, Michael Keil, Albrecht Harreus