Long-chain enals via carbonyl–olefin metathesis. An application in pheromone synthesis
Abstract
7-Phenylhept-6-enal and non-6-enal have been obtained from readily avilable materials through consecutive photochemical cycloaddition and selective thermal cycloreversion steps involving bicyclic oxetans as intermediates; subsequent reduction in one of the series produces trans-non-6-en-1-ol, an insect pheromone.