Combined coinage metal catalysis in natural product synthesis: total synthesis of (+)-varitriol and seven analogs
作者:Tao Sun、Carl Deutsch、Norbert Krause
DOI:10.1039/c2ob25069a
日期:——
A modular total synthesis of the natural product (+)-varitriol (1) and seven analogs was achieved by using combined coinage metal catalysis. Starting from enynol 13, reagent-controlled introduction of stereogenic centers and efficient center-to-axis-to-center chirality transfer via α-hydroxyallene 5 afforded (+)-varitriol with 6.4% yield over 10 steps.
天然产物的模块化全合成 (+)-曲三醇(1)和七个类似物是通过组合造币金属催化制备的。从enynol开始13,试剂控制的引入手性中心,高效的经由中心到轴到中心的手性转移α-hydroxyallene 5,得到(+)-曲三醇 10步产率为6.4%。