Iron-Catalyzed Synthesis of 2-Arylbenzo[<i>b</i>]furans
作者:Jianguo Yang、Guodong Shen、Dingben Chen
DOI:10.1080/00397911.2011.610550
日期:2013.2.1
An iron-catalyzed procedure was employed to achieve both the Sonogashira cross-coupling and intramolecular o-arylation of o-iodophenols and aryl acetylenes/1-substituted-2-trimethylsilyl acetylenes. A variety of 2-arylbenzo[b]furans were synthesized in moderate to good yields under the catalysis of 5% FeCl3 and 10% 1,10-phenanthroline.
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.