| 摘要 |
Compounds of formula (I), wherein R1 is hydrogen or a specified substituent, R2 is hydrogen, C1-C6-alkyl, (C1-C6-alkylene)phenyl, pyridyl, COOR6, CONR7R8 , COR6, allyl or CH2-O-R6; R3 is C1-C6-alkyl; R4 is unsubstituted or substitut ed phenyl, unsubstituted or substituted benzyl or unsubstituted or substituted heterocyclyl; R6 is C1-C6-alkyl, phenyl or benzyl; R7 and R8 independently o f one another, are hydrogen or C1-C6 alkyl; Q is C1-C6-alkylene; X1 is N or C(CN); X2 is N, C(CN), C(COOR6), C(COR6), C(OR6), C(CONR7R8) or C(NO2); X3 a nd X4, independently of each other, are O or S; and n is 0 or 1, have advantageous pesticidal properties. They are especially suitable for the control of pests on domestic animals and livestock.
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