Ruthenium-Catalyzed Synthesis of Highly Substituted Pyrroles from 1-Vinylpropargyl Alcohols and Amines
作者:Nora Thies、Martin Gerlach、Edgar Haak
DOI:10.1002/ejoc.201300803
日期:2013.11
Ruthenium-catalyzed atom-economic transformations of 1-vinylpropargyl alcohols with amines leading to highly substituted pyrroles in a one-pot cascade process are reported. The allylation/cycloisomerization sequence is catalyzed by a single ruthenium(0) complex that contains a redox-coupled dienone ligand and can be extended by an additional [3,3] rearrangement. The environmentally benign reactions
报道了钌催化的 1-乙烯基炔丙醇与胺的原子经济转化,导致在一锅级联过程中产生高度取代的吡咯。烯丙基化/环异构化序列由包含氧化还原偶联二烯酮配体的单个钌 (0) 络合物催化,并可通过额外的 [3,3] 重排进行扩展。环境友好的反应允许金属催化将廉价且易于获得的材料转化为高度官能化的吡咯,而水作为唯一的废物产物。