The first total syntheses of schilancitrilactonesB and C have been accomplished in 17 steps (longest linear sequence) from commercially available materials. Key steps include an intramolecular radical cyclization to provide the seven‐membered ring, late‐stage iodination, and an intermolecular radical addition reaction to complete the totalsynthesis.
Diastereoselective γ-vinyl butyrolactone synthesis viagold catalyzed cyclization of allylic acetate
作者:Ya-Hui Wang、Li-Li Zhu、Yu-Xin Zhang、Zili Chen
DOI:10.1039/b913348h
日期:——
An efficient method for the preparation of polysubstituted gamma-vinyl butyrolactones was developed through gold catalyzed highly diastereoselective cyclization of the malonate substituted allylic acetates.