Room Temperature Direct Alkynylation of 1,3,4-Oxadiazoles with Alkynyl Bromides under Copper Catalysis
作者:Tsuyoshi Kawano、Naoto Matsuyama、Koji Hirano、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/jo9025622
日期:2010.3.5
The direct alkynylation reaction of 1,3,4-oxadiazoles with alkynyl bromides efficiently proceeds in the presence of a copper catalyst at room temperature to create the corresponding heteroaryl−alkynyl linkage in good yields. This direct coupling provides a rapid and convergent access to oxadiazole core π-conjugated systems.
1,3,4-恶二唑与炔基溴的直接炔基化反应可在室温下在铜催化剂存在下有效地进行,从而以高收率产生相应的杂芳基-炔基键合。这种直接偶联提供了对二恶唑核心π共轭体系的快速收敛。