Unexpected Extension of Usage of PPh<sub>3</sub>/CBr<sub>4</sub>, a Versatile Reagent: Isomerization of Aromatic Allylic Alcohols
作者:Wanchun Gong、Yun Liu、Jijun Xue、Zhixiang Xie、Ying Li
DOI:10.1246/cl.2012.1597
日期:2012.12.5
The PPh3/CBr4-catalyzed isomerization of 2-aromatic allylic alcohols into the corresponding saturated aldehydes or ketones has been achieved at room temperature in good to excellent yields under mild and metal-free conditions. This new methodology has been applied successfully to the synthesis of ibuprofen in four steps.
在温和和无金属条件下,PPh3/CBr4 催化的 2-芳族烯丙醇异构化为相应的饱和醛或酮已在室温下实现,收率良好至极好。这种新方法已成功应用于四步合成布洛芬。