申请人:Roussel Uclaf
公开号:US04808210A1
公开(公告)日:1989-02-28
A 5-pyrazolone of the formula ##STR1## wherein R is selected from the group consisting of mono- and polycyclic aromatic of 6 to 14 carbon atoms, heterocyclic optionally substituted with phenyl, ##STR2## and benzyl, all optionally substituted with at least one member of the group consisting of fluorine, chlorine, bromine, --CF.sub.3, optionally unsaturated alkyl of 1 to 8 carbon atoms and the radical OZ in which Z is an optionally unsaturated alkyl of 1 to 8 carbon atoms or an acyl of a carboxylic acid of 1 to 6 carbon atoms, A is selected from the group consisting of halogen, --CF.sub.3 and --CN, B and C are individually selected from the group consisting of hydrogen, halogen, --OH, --OR' and R' is optionally unsaturated alkyl of 1 to 8 carbon atoms, acyl of 1 to 6 carbon atoms, alkyl sulfonyl of 1 to 8 carbon atoms, aryl sulfonyl of 6 to 18 carbon atoms and benzyl optionally substituted with a member of the group consisting of fluorine, chlorine, bromine, --CF.sub.3, optionally unsaturated alkyl of 1 to 8 carbon atoms, optionally unsaturated alkyl and haloalkyl of 1 to 8 carbon atoms interrupted with at least one heteroatom, with the proviso that B and C can not both be fluorine or --OH having herbicidial activity.
式为##STR1##的5-吡唑酮,其中R从单环和多环芳香族(含6至14个碳原子)、杂环化合物(可选择性地与苯基取代)、##STR2##和苄中选择,所有这些都可以选择性地取代至少一种由氟、氯、溴、--CF.sub.3、1-8个碳原子的可选择性不饱和烷基和基团OZ组成的群体,其中Z是1-8个碳原子的可选择性不饱和烷基或1-6个碳原子的羧酸酰基,A从卤素、--CF.sub.3和--CN组成的群体中选择,B和C分别从氢、卤素、--OH、--OR'和R'中选择,其中R'是1-8个碳原子的可选择性不饱和烷基、1-6个碳原子的酰基、1-8个碳原子的烷基磺酰基、6-18个碳原子的芳基磺酰基和苄中选择,其中苄可以选择性地与由氟、氯、溴、--CF.sub.3、1-8个碳原子的可选择性不饱和烷基、可选择性不饱和烷基和含有至少一个杂原子的1-8个碳原子的卤代烷基取代的群体中的一种取代,但是B和C不能同时为氟或--OH,具有除草活性。