Pyrifluquinazon was a novel quinazinalone analog insecticide which developed by Nihon Nohyaku Co.,In this paper,11 quinazinalone analogs were synthesized by using 2-aminobenzylalcohol and heterocyclic boronic acid as initial materials through 8 steps.The structures of the target compounds were confirmed by 1H NMR and HRMS.The results of insecticidal activity at greenhouse showed that quinazinalone analogs had excellent insecticidal activities against Aphis fabae at 100 mg/L.Among them,the insecticide activities of compounds 9-4,9-5,9-7 against A.fabae at 100 mg/L is 100％,which was superior to 91.9％of pyrifluquinazon.
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