Stereoselective synthesis of 6-oxabicyclo[3.2.1]octene via (3,5)-oxonium-ene reaction
作者:Pipas Saha、Anil K. Saikia
DOI:10.1016/j.tet.2012.01.064
日期:2012.3
Oxabicyclo[3.2.1]octene can efficiently be synthesized by the reaction of (−)-terpinen-4-ol and aldehyde or epoxide catalyzed by indium triflate (In(OTf)3) in good yields. The reaction is stereoselective and proceeds via (3,5)-oxonium-ene-type reaction.