Chelation-Controlled Reduction of α-Methylated 8-Oxabicyclo[3.2.1]oct-6-en-3-ones with Samarium Diiodide. Diastereoselective Preparation of Secondary Alcohols
摘要:
The title reduction has been effected with high stereocontrol using samarium diiodide in the presence of a proton source. It is concluded that chelation of samarium by the ether oxygen of the substrate directs and facilitates the reduction to equatorial alcohol.