Palladium-catalyzed oxidative alkynylation of arene C–H bond using the chelation-assisted strategy
作者:Seok Hwan Kim、Sae Hume Park、Sukbok Chang
DOI:10.1016/j.tet.2012.04.003
日期:2012.7
Palladium-catalyzed alkynylation of arene C–H bonds with (triisopropylsilyl)acetylene was developed for the first time under oxidative conditions in the present study. Among various type of directing groups examined, the N-phenyl-2-aminopyridine skeleton was shown to be most effective and selective for the Pd-catalyzed direct alkynylation reaction, and the desired alkynylated products were obtained
本研究首次在氧化条件下开发了钯催化的芳烃CH键与(三异丙基甲硅烷基)乙炔的炔基化反应。在所考察的各种类型的导向基团中,N-苯基-2-氨基吡啶骨架显示出对Pd催化的直接炔基化反应最有效和最具选择性,并且以中等至良好的收率获得了所需的炔基化产物。