Highly Stereoselective <i>7-Endo-Trig</i>/Ring Contraction Cascade To Construct Pyrrolo[1,2-<i>a</i>]quinoline Derivatives
作者:Xinyu Li、Cheng Li、Wenjing Zhang、Xiang Lu、Shiqing Han、Ran Hong
DOI:10.1021/ol100220c
日期:2010.4.16
With the cooperation of Cram's phenonium ion, a novel cascade reaction was illustrated to construct pyrrolo[1,2-a]quinolines as a sole diastereoisomer in good to excellent yields. Preliminary mechanistic studies revealed that the gamma-lactam ring and electron-rich arene are important driving forces for ring contraction.