Synthesis of (Z)-7-Eicosen-11-one and (Z)-7-Nonadecen-11-one, the Sex Pheromone of Peach Fruit Moth

Abstract

A new method is described for synthesis of (Z)-7-eicosen-11-one (1) and (Z)-7-nonadecen-11-one (2), the active principles of the sex pheromone of the peach fruit moth, using the Wittig reaction for γ-keto aldehydes prepared from diethyl 3-oxoglutarate (3).