Synthesis of Four Stereoisomers of (<i>S</i>)-2-Methylpent-3-yl 3,13-Dimethylpentadecanoate, a Sex Pheromone of the Bagworm Moth<i>Clania variegate</i>, Using Stereospecific Inversion of Secondary Sulfonates as a Key Step
Recently, we have established a simple preparative method for the synthesis of methyl-branched building blocks by utilizing an SN2reaction of chiral secondary tosylates derived from (S)- and (R)-propylene oxides. The usefulness of these building blocks was demonstrated by their application in the synthesis of all four stereoisomers of an acid moiety in the bagworm pheromone. The enantiomeric purities of