| 摘要 |
<p>gamma -Pyrone phosphoric ester derivative represented by the general formula below is useful as an effective component of an insecticidal or miticidal composition for agricultural and horticultural uses. <IMAGE> [I] wherein R1 is hydrogen, lower alkyl group, lower alkenyl group, cycloalkyl group or phenyl group, R2 is hydrogen or lower alkyl group unsubstituted or substituted with halogen atom, A is -SR3 or -NR4R5, B is OR6, R3 being lower alkyl group, cycloalkyl group or phenyl group, R4 being hydrogen or lower alkyl group, R5 being lower alkyl group, lower alkenyl group, cycloalkyl group, phenyl group or benzyl group, R4 and R5 may link to form piperidino or morpholino group, R6 being lower alkyl group, cycloalkyl group or phenyl group, Y is oxygen or sulfur atom.</p> |
