| 摘要 |
Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes, having 2 or 3 ring hetero atoms selected from O, S and N, substituted at the 1-position by a 4-alkynylphenyl group and at the 4-position and optionally at the 3 and/or 5-position are valuable pesticides, particularly insecticides and acaracides. The compounds may be prepared by reacting an alkyne with the corresponding 4-iodophenyl substituted compounds or by debromination of the corresponding 4-dibromomethylphenyl substituted compound.
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