Synthetic Studies on Germacranolides: Synthesis of Optically Active 3-Benzoyloxy-6-oxo-13-nor-12,8-heliangolide

Abstract
Optically active (3R,7R,8R,1(10)E,4Z)-3-benzoyloxy-6-oxo-13-nor-1(10),4-germacradieno-12,8-lactone, a key synthetic intermediate for naturally occurring hiyodorilactone A, was prepared from (−)-carvone.