Saligenin Cyclic Alkyl Phosphates and Phosphorothionates with Insecticidal Activity

Abstract

Several saligenin cyclic alkyl phosphates and phosphorothionates were prepared and theirinsecticidal activities were examined. 2-Methoxy-4H-1, 3, 2-benzodioxaphosphoran-2-one andits thiono analog are strong insecticides, the toxicities of which to a number of insects arealmost equal to or superior to parathion. They are less toxic to mouse than parathion.When the length of alkyl radical was increased, the insecticidal activity decreased.