Ni(<scp>ii</scp>)-catalyzed dehydrative alkynylation of unactivated (hetero)aryl C–H bonds using oxygen: a user-friendly approach
作者:Yan-Hua Liu、Yue-Jin Liu、Sheng-Yi Yan、Bing-Feng Shi
DOI:10.1039/c5cc03729h
日期:——
Ni(ii)-catalyzed dehydrative alkynylation of unactivated C(sp2)–H bonds with terminal alkynes under atmospheric pressure of oxygen is described.
使用Ni(ii)催化的未活化的C(sp2)-H键与末端炔烃进行脱水炔基化反应,在氧气大气压下进行。
Copper/Silver-Mediated Direct<i>ortho</i>-Ethynylation of Unactivated (Hetero)aryl CH Bonds with Terminal Alkyne
作者:Yue-Jin Liu、Yan-Hua Liu、Xue-Song Yin、Wen-Jia Gu、Bing-Feng Shi
DOI:10.1002/chem.201405594
日期:2015.1.2
directing group and features broad substrate scope, high functional‐group tolerance, and compatibility with a wide range of heterocycles, providing an efficient synthesis of aryl alkynes. This procedure highlights the potential of copper catalysts to promote unique, synthetically enabling CH functionalization reactions that lie outside of the current scope of precious metal catalysis.