ESTER COMPOUND, ACTIVE AGENT FOR CONTROLLING NOXIOUS INSECT PESTS CONTAINING THE SAME AS ACTIVE INGREDIENT, INTERMEDIATE FOR PRODUCTION OF THE ESTER COMPOUND, AND PROCESS FOR PRODUCING THE INTERMEDIATE

摘要

The present invention provides an ester compound represented by a formula I: <IMG> I wherein R1 denotes a hydrogen atom or a methyl group; R2 represents a 1-methyl-2-propenyl group, a 1-methyl-2-propynyl group, a 3,3-dihalogeno-1-methyl-2-propenyl group, or a C1-C16 alkyl group which may be substituted with at least one halogen atom; and R3 represents an acid residue of pyrethroids. The invention also relates to an active agent for controlling noxious insect pests containing the ester compound as an active ingredient, an intermediate for production of the ester compound and a process for producing the intermediate. The ester compound represented by the formula I has good activities for controlling noxious insect pests.