Syntheses and Synergistic Activity of Some Pyrethrum Synergists from Dillapiole

Abstract

In a search for alternative pyrethrum synergists, dillapiole, one of the chief constituents of Indian dill (Anethum sowa Roxb.) seed oil has been converted into a number of derivatives. Syntheses of 16 such compounds, their spectrometric characterization and factors of synergism towards pyrethrins against Tribolium castaneum Herbst. are being reported. Some of these compounds showed superior activity to piperonyl butoxide, the most commonly used pyre-thrum synergist.