The Synthesis of 2-substituted Benzo[b]furans Catalyzed by Ni/5-Bromo-
2,2’-bipyridine
作者:Zhou Rong、Wang Huan-huan、Li Yu-qin、Ding Yan-li、Qin Xiao-li、Sha Jing、Li Ping、Jin Lu
DOI:10.2174/1570178619666220405203702
日期:2022.12
A tandem system enabled the synthesis of 2-substitutedbenzo[b]furansfrom 2-halophenols and aryl acetylenes was explored catalyzed by Ni/5-bromo-2,2’-dipyridine. The protocol could be effective for one-pot cascade coupling cyclization reaction producing benzo[b]furan compounds, and heteroaryl substrates was compatible to this system as well, giving corresponding products in 20-70% yields.