| 摘要 |
A compound selected from the group consisting of all possible isomeric forms and mixtures thereof of a compound of the formula <IMAGE> I wherein R1 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkenyl and alkynyl of 2 to 8 carbon atoms and cycloalkyl and cycloalkylalkyl of 3 to 8 carbon atoms, R2 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkenyl and alkynyl of 2 to 8 carbon atoms, cycloalkyl of 3 to 8 carbon atoms and acyl of 1 to 9 carbon atoms, X1 and X2 are individually selected from the group consisting of fluorine, chlorine, bromine, iodine, -CF3, -CN, -COOR and <IMAGE> R is alkyl of 1 to 8 carbon atoms, Hal is chlorine, bromine or fluorine and R3 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms and residue of an alcohol used in pyrethrinoid synthesis having excellent pesticidal properties.
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