Silver-Mediated exo-Selective Tandem Desilylative Bromination/Oxycyclization of Silyl-Protected Alkynes: Synthesis of 2-Bromomethylene-Tetrahydrofuran
作者:Hyun-Ji Lee、Chaemin Lim、Soonho Hwang、Byeong-Seon Jeong、Sanghee Kim
DOI:10.1002/asia.201100158
日期:2011.8.1
Three in one: The exocyclic β‐bromo enol ether is a synthetically useful functional moiety in the preparation of functionalized oxygen heterocycles. A new tandem method for the synthesis of this valuable moiety has been achieved by employing silyl‐protected acetylenic alcohols. To demonstrate the synthetic potential of the developed method, a brief total synthesis of pachastrissamine was successfully
三合一:环外β-溴烯醇醚是制备官能化氧杂环的合成上有用的功能部分。通过使用甲硅烷基保护的炔醇,已经实现了一种新的串联方法来合成这种有价值的部分。为了证明所开发方法的合成潜力,成功尝试了简要的pachastrissamine的全合成。NBS = N-溴代琥珀酰亚胺。