A Pd(II)‐catalyzed oxidative cyclization of olefinic tosylamides was developed for the preparation of aryl‐fused and N‐containing six‐membered heterocycles. Under optimized conditions the reaction proceeded with high activity and selectivity, with yields of up to 83% being obtained. This procedure provides a facile and efficient route to the aforementioned heterocycles with 2‐acetoxy functionality
Pd(II)-catalyzed oxidative cyclization reaction for the preparation of 2-substituted 1,2,3,4-tetrahydroquinolines with halide functionality
作者:Feng Jiang、Zhengxing Wu、Wanbin Zhang
DOI:10.1016/j.tet.2010.12.017
日期:2011.2
The first Pd(II)-catalyzed oxidative cyclization reaction was developed for preparation of 2-substituted 1,2,3,4-tetrahydroquinolines from olefinic tosylamides. Under the optimized conditions, up to 86% yield was obtained. This reaction provides direct and easy access to 2-substituted 1,2,3,4-tetrahydroquinolines with halide functionality. (C) 2010 Elsevier Ltd. All rights reserved.