The sex pheromone of Grapholitha molesta,(Z/E)-8-dodecylen-1-ol acetate, was easily synthesized in an overall yield of 41.5% with 1, 8-octanediol as starting material via mono- esterification, PCC oxidation, and Witting reactions. The Z/E ratio is 83: 17. Configuration transformation of Z/E 83: 17 compound with sodium nitrite and nitric acid resulted in the production of a compound with Z/E 24: 76. The products were confirmed by IR, 1 H NMR, ...
