Facile Synthesis of Pyridines from Propargyl Amines: Concise Total Synthesis of Suaveoline Alkaloids
作者:Zhiwen Zhao、Hongbo Wei、Ke Xiao、Bin Cheng、Hongbin Zhai、Yun Li
DOI:10.1002/anie.201811812
日期:2019.1.21
A general and efficient protocol was developed for the synthesis of polysubstituted pyridines from propargyl amines and unsaturated carbonyl compounds through a tandem condensation/alkyne isomerization/6π 3‐azatriene electrocyclization sequence. This process was found to be applicable to a wide range of readily available substrates (30 examples, up to 95 % yield) and could be readily performed on a
通过串联缩合/炔烃异构化/6π3-氮杂三烯电环化序列,从炔丙基胺和不饱和羰基化合物合成多取代吡啶的通用有效方法已被开发出来。发现该方法适用于广泛的容易获得的底物(30个实例,产率高达95%),并且可以容易地以制备性(20g)规模进行。通过利用该方法后期掺入吡啶,我们成功地完成了suveoline,norsuveoline和macrophylline的集体全合成。