Stereoselective Synthesis of the LM Ring Moiety of Ciguatoxin: Reagent Control of Asymmetric Dihydroxylation

Abstract
Stereoselective synthesis of the LM ring moiety of ciguatoxin was achieved from (R)-(E)-1-benzyloxy-2-hydroxy-3-pentene via Ireland-Claisen rearrangement, iodolactonization, and reagent-controlled asymmetric dihydroxylation.