Assembly of Four Diverse Heterocyclic Libraries Enabled by Prins Cyclization, Au-Catalyzed Enyne Cycloisomerization, and Automated Amide Synthesis
作者:Jiayue Cui、David I. Chai、Christopher Miller、Jason Hao、Christopher Thomas、JingQi Wang、Karl A. Scheidt、Sergey A. Kozmin
DOI:10.1021/jo301061r
日期:2012.9.7
simple one-flask operation starting with readily available amines, ketoesters, and unsaturated anhydrides. The use of tetrahydropyran-containing ketoesters, which were rapidly assembled by our Prins cyclization protocol, enabled efficient fusion of pyran and piperidinone cores. A newly developed Au(I)-catalyzed cycloisomerization of alkyne-containing enamides further expanded heterocyclic diversity by
我们描述了有效组装四个新杂环库的统一合成策略。合成开始于创建一系列结构不同的吡咯烷酮或哌啶酮。此类化合物是从容易获得的胺、酮酯和不饱和酸酐开始的简单单瓶操作中获得的。使用由我们的 Prins 环化方案快速组装的含四氢吡喃的酮酯,能够有效地融合吡喃和哌啶酮核心。新开发的 Au(I) 催化的含炔烯酰胺的环异构化通过提供快速进入广泛的双环和三环二酰胺进一步扩展了杂环的多样性。