Total Synthesis of C30 Botryococcene and
<i>epi</i>
‐Botryococcene by a Diastereoselective Ring Opening of Alkenylcyclopropanes
作者:Morgan Cormier、Aurélien de la Torre、Ilan Marek
DOI:10.1002/anie.201808709
日期:2018.10
Trialkylaluminum compounds perform a diastereoselective 1,6‐ring fragmentation of alkenylcyclopropane. This new tool allows the preparation of hydrocarbon compounds containing two distant stereocenters with a good diastereocontrol. Inspired by the biosynthesis of botryococcene this methodology was applied successfully to the diastereo‐ and enantioselective preparation of this triterpene and its epimer