S. Raina et Vk. Singh, ASYMMETRIC-SYNTHESIS OF 5-HEXADECANOLIDE, PHEROMONE OF THE QUEEN OF THE ORIENTAL HORNET, VESPA-ORIENTALIS, Tetrahedron, 52(12), 1996, pp. 4479-4484
An efficient asymmetric synthesis of 5-hexadecanolide from a chiral ep
oxide is described. Both the enantiomeric forms of the chiral epoxide
are easily available from mannitol and ascorbic acid. The key step in
the synthesis is the formation of delta-lactone from delta-hydroxy ace
tal using m-CPBA and BF3 . OEt(2).