Stereoselective synthesis of trans-THF rings using an oxidative cyclisation-radical deoxygenation sequence: application to the formal synthesis of trans-(2R,5R)-linalool oxide
作者:Nadeem S. Sheikh
DOI:10.1039/c4ra13258k
日期:——
An efficient stereoselective synthesis of cis-2,5-disubtituted tetrahydrofuran (THF) diols has been achieved using permanganate-mediated oxidative cyclisation of 1,5-diene precursors. The facial selectivity during the course of cyclisation was induced by incorporating conveniently accessible chiral auxiliaries such as (2R)-10,2-camphorsultam, (S)-4-benzyloxazolidin-2-one and (−)-8-phenylmenthol. The
Enantioselective Formal Synthesis of Eurylene: Synthesis of the <i>cis</i>- and <i>trans</i>-THF Fragments Using Oxidative Cyclization
作者:Nadeem S. Sheikh、Carole J. Bataille、Tim J. Luker、Richard C. D. Brown
DOI:10.1021/ol100513y
日期:2010.6.4
A formal synthesis of eurylene is described, where both cis- and trans-THF-containing fragments were prepared using diastereo- and chemoselective permanganate-mediated oxidative monocyclizations of trienes.