Ruthenium-Catalyzed Allylation-Cyclization Reactions of Cyclic 1,3-Dicarbonyl Compounds with 1-Vinyl Propargyl Alcohols
作者:Anita Jonek、Stefanie Berger、Edgar Haak
DOI:10.1002/chem.201202414
日期:2012.11.26
Ruthenium‐catalyzed allylation–cyclization reactions of cyclic 1,3‐dicarbonyl compounds with 1‐vinyl propargyl alcohols that lead to diverse carbo‐ or heterocyclic products in a one‐pot cascade process are reported. These mechanistically distinct reactions are catalyzed by a single ruthenium(0) complex that contains a redox‐coupled dienone ligand. The reaction pathway strongly depends on the substrate
据报道,在单锅级联过程中,环状1,3-二羰基化合物与1-乙烯基炔丙醇的钌催化烯丙基化环化反应可导致多种碳或杂环产物。这些机理上截然不同的反应是由单个钌(0)配合物催化的,该配合物包含氧化还原偶联的二烯酮配体。反应途径在很大程度上取决于底物取代模式,后者决定了1-乙烯基炔丙醇的激活方式。产生水作为唯一废物的对环境无害的过程涉及面很广,可以实现高度功能化的呋喃,吡喃和螺碳环化合物的原子经济合成。