A compound of formula (I) wherein R1 to R4 are, for example, each hydrogen, R5 is, for example, a substituted phenol; R6 is, for example, hydrogen; R7 is, for example, hydrogen, cyano, hydroxyl, formyl, C1-C4-alkyl, C1-C4-alkoxy, C2-C4-alkenyl, or C2-C4-alkynyl; and A1 to A5 is, for example, A1 is N or C—X, A3 is C—X, and A2, A4 and A5 are C—H, where X, is, for example, halogen; and its use as a pesticidal agent.