STEREOSELECTIVE TOTAL SYNTHESES OF (±)-RECIFEIOLIDE AND (R)-(+)-RICINELAIDIC ACID LACTONE

Abstract
The naturally occurring macrolide, (±)-recifeiolide, was synthesized stereoselectively. (E)-11-Hydroxy-8-dodecenoic acid (5) was obtained stereoselectively from 11-hydroxy-8-dodecynoic acid by the reduction with lithium, and the acid (5) was cyclized to (±)-recifeiolide in excellent yield via its 6-phenyl-2-pyridyl ester. Similarly, (R)-(+)-ricinelaidic acid was lactonized to afford the corresponding lactone in high yield.