A concise approach to polysubstituted oxazoles from N-acyl-2-bromo enamides via a copper(<scp>i</scp>)/amino acid-catalyzed intramolecular C–O bond formation
作者:Bingjie Liu、Yueteng Zhang、Gang Huang、Xinting Zhang、Pengfei Niu、Jie Wu、Wenquan Yu、Junbiao Chang
DOI:10.1039/c4ob00309h
日期:——
intramolecular Ullmann-type C–O coupling reaction has been developed. This protocol affords a facile methodology for the synthesis of a series of novel 2,4,5-substituted oxazoles from readily accessible N-acyl-2-bromo enamides under mild conditions.
已经开发出一种简单有效的铜(I)/氨基酸催化的分子内乌尔曼型C–O偶联反应。该方案提供了在温和的条件下从容易获得的N-酰基2-溴代酰胺类化合物合成一系列新颖的2,4,5-取代的恶唑的简便方法。