| 摘要 |
Pyrazoline derivatives have the formula <CHEM> wherein R<1> represents hydrogen atom, a lower akyl group, phenyl group, a halogen-substituted phenyl group, a cyano alkyl group or a lower alkoxy alkyl group; R<2> and R<3> respectively represent hydrogen atom, a lower alkyl group, phenyl group or a halogen-substituted phenyl group; R<4> represents hydrogen atom or a lower alkyl group; X represents hydrogen atom or a halogen atom; W represents oxygen or sulfur atom; Y and Z respectively represent hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro group, trifluoromethyl group, a lower alkylthio group, an acyl group, nitrile group, a lower alkyl sulfonyl group, a lower alkoxycarbonyl group, -A-R<5> or Y and Z form <CHEM> and A represents -O-, -S-, -SO- or -SO2- and R<5> represents a halogen-substituted lower alkyl group. |
