| 摘要 |
Intermediates, for insecticides, of the formula <IMAGE> in which R is a hydrogen atom or a lower alkyl group, X is a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkylsulfinyl group, a lower alkylsulfonyl group, a lower alkenyl group or a lower alkynyl group; a phenyl, phenoxy, phenylthio, naphthyl, naphthoxy or naphthylthio group which may optionally be substituted by halogen; or a benzyl, phenethyl or naphthylmethyl, group, l is 1, 2, 3 or 4, m is 2, 3 or 4, and n is 0, 1, 2 or 3.
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