Modular Synthesis of Multisubstituted Furans through Palladium-Catalyzed Three-Component Condensation of Alkynylbenziodoxoles, Carboxylic Acids, and Imines
作者:Junliang Wu、Naohiko Yoshikai
DOI:10.1002/anie.201504687
日期:2015.9.14
regiocontrolled synthesis of a multisubstituted furan is achieved through Pd(OAc)2‐catalyzed room‐temperature condensation of an alkynylbenziodoxole, a carboxylic acid, and an enolizable ketimine, which contribute to C1, CO, and C2 fragments, respectively, to the furan skeleton. The reaction tolerates a broad range of functional groups in each of the reaction components, and enables highly modular and flexible
多取代呋喃的轻度和区域控制合成是通过Pd(OAc)2催化的炔基苯并恶唑,羧酸和可烯化的酮亚胺在室温下的缩合反应实现的,它们分别促成C1,CO和C2片段的形成。呋喃骨架。该反应可耐受每种反应组分中的各种官能团,并能够高度模块化和灵活地合成各种取代的呋喃。该反应对于快速生成三芳基和四芳基呋喃以及含呋喃的低聚亚芳基特别有效,而无需依赖常规的交叉偶联化学反应。