排序方式: 共有1条查询结果,搜索用时 0 毫秒
1
1.
Roge R. G. Bolton 《Pest management science》1976,7(3):251-257
1-Alkylcyclopropanecarboxylic acids are synthesised by thermolysis of 1-pyrazolines prepared by 1,3-dipolarcycloadditions of diazoalkanes. The insecticidal and acaricidal activities of 14 pyrethroid esters of these acids are considered in relation to the influence of steric and metabolic factors on activity. 1-Alkyl compounds are less active than esters with no alkyl group at position 1, contrary to expectations, and also less active than the corresponding 2-alkyl esters. 相似文献
1