N-vinylimidazolidine derivatives, preparation thereof, insecticides containing same as an effective ingredient and intermediates thereof

The present invention relates to novel N-vinylimidazolidine derivatives of the following formula (1), a process for producing them, an insecticide containing the derivatives as an effective ingredient, and novel intermediates. The derivatives (1) are useful as agricultural chemicals (particularly, as insecticides) in the fields of agriculture, and the intermediates are useful in various industrial fields, especially as intermediates for agricultural chemicals. where R represents a hydrogen atom, a phenyl group, or an alkyl group having from 1 to 4 carbon atoms; R represents a hydrogen atom, a phenoxy group, a benzyl group, a phenyl group, an aldehyde group, a 2-chloropyridin-5-ylmethyl group, a benzoylamino group, an alkyl group having from 1 to 18 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an alkylthio group having from 1 to 4 carbon atoms, a phenyl group substituted by halogen atom(s), a phenyl group substituted by cyano group(s), a phenyl group substituted by phenyl group(s), a phenyl group substituted by benzoyl group(s), a phenyl group substituted by methylenedioxy group(s), a phenyl group substituted by alkyl group(s) having from 1 to 4 carbon atoms, a phenyl group substituted by alkoxy group(s) having from 1 to 4 carbon atoms, a phenyl group substituted by alkylthio group(s) having from 1 to 4 carbon atoms, a phenyl group substituted by haloalkyl group(s) having from 1 to 4 carbon atoms, or a phenyl group substituted by haloalkoxy group(s) having from 1 to 4 carbon atoms; and Z represents a 2-chloropyridin-5-ylmethyl group or a 2-chlorothiazol-5-ylmethyl group..