Divergent Synthesis of Trans-Fused Polycyclic Ethers by a Convergent Oxiranyl Anion Strategy
作者:Takeo Sakai、Ai Sugimoto、Hiroki Tatematsu、Yuji Mori
DOI:10.1021/jo302267f
日期:2012.12.21
oxiranyl anion generated from an epoxy sulfone, followed by ring expansion, allowed for the incorporation of medium-sized ring ethers into the key intermediate. Subsequent acetal formation and reductive etherification afforded various octacycles containing seven- and eight-membered ether rings.