Absolute Configurations of Some Hydroxy-fatty Acids Produced by the Insect Genus Laccifer

The absolute configurations of some hydroxy-fatty acids were examined by the modified Mosher’s method proposed by Ohtani et al. The absolute configurations of the major components were determined from NMR data of their ΜΤΡΑ esters and 2-ΝΜΑ esters. The application of Mosher’s method for the anti-glycol is discussed.