ANALYSIS OF THE ESSENTIAL STRUCTURAL FEATURES OF DDT BY A STUDY OF THE TOXICITY OF CLOSELY RELATED COMPOUNDS TO ROACHES AND TO HOUSEFLIES

Abstract

Three series of compounds have been prepared and compared for the insecticidal activities against German roaches and houseflies. The substituted 2,2-diphenyltrichloroethanes and substituted benzohydrols have been found to have comparable activities on roaches. The substituted 2,2-diphenyltrichloroethanes alone had insecticidal properties against houseflies. The benzophenone derivatives were ineffective against both groups of insects.