Stereoselective Synthesis of <i>cis</i>-2,5-Disubstituted THFs: Application to Adjacent Bis-THF Cores of Annonaceous Acetogenins
作者:Hiromichi Fujioka、Ryota Maehata、Shintaro Wakamatsu、Kenji Nakahara、Tatsuya Hayashi、Tomohiro Oki
DOI:10.1021/ol203425p
日期:2012.2.17
intermediates. N-Iodosuccinimide (NIS) effectively worked as an activator of the double bonds in the substrates and the silyl enol ether. Application to an expedient synthesis of the adjacent bis-tetrahydrofuran core of Annonaceous acetogenins with a cis/threo/cis relative stereochemistry is also described.
在甲硅烷基烯醇醚的存在下,γ,δ-不饱和醇的碘环化通过甲硅烷氧基中间体在一个罐中产生了顺式-2,5-二取代的四氢呋喃。N-碘代琥珀酰亚胺(NIS)有效地用作底物和甲硅烷基烯醇醚中双键的活化剂。还描述了用于具有顺/苏/顺/顺相对立体化学的壬基产乙酸原的相邻双-四氢呋喃核的合成的应用。