Studies on Chrysanthemic Acid

Part XVIII. A New Biologically Active Acid Component Related to Chrysanthemic Acid

Abstract

Seventeen rethronyl esters were prepared and their toxicities towards the housefly were measured and compared with those of allethrin or standard pyrethrin. As a result, a new acid comporlent with a high activity, 2, 2, 3, 3-tetramethyl-cyclopropanecarboxylic acid, was discovered and some information was obtained about the correlation between chemical structure and activity.