The direct C−H alkynylation of azoles with terminal alkynes proceeds efficiently under a nickel/O2 catalytic system. On the other hand, a copper/air catalyst enables the coupling of polyfluoroarenes with terminal alkynes. These catalyses provide new accesses to arylacetylenes through the formal direct Sonogashira coupling.
在镍/ O 2催化体系下,唑类与末端炔烃的直接CH炔基化反应有效进行。另一方面,铜/空气催化剂能够使多氟芳烃与末端炔烃偶联。这些催化剂通过正式的直接Sonogashira偶联为芳基乙炔提供了新的途径。
A convenient synthesis of fluoro-aromatic acetylene derivatives
作者:Zhang Yadong、Wen Jianxun
DOI:10.1016/s0022-1139(00)82405-7
日期:1990.5
The coupling reaction between polyfluoroiodobenzenes and terminal acetylenes under the catalysis of bis(triphenylphosphine)palladium dichloride and copper(I) iodide in triethylamine afforded a simple and effective method for the synthesis of fluoro-aromatic acetylene derivatives.