Indium-mediated annulation of 2-azidoaryl aldehydes with propargyl bromides to [1,2,3]triazolo[1,5-<i>a</i>]quinolines
作者:Xiaomin Zhang、Jiali Yang、Ni Xiong、Zhe Han、Xinhua Duan、Rong Zeng
DOI:10.1039/d1ob01183a
日期:——
indium-mediated cascade annulation reaction of 2-azidoaryl aldehydes with propargyl bromides is reported. The aromatic 5/6/6-fused heterocycles, [1,2,3]triazolo[1,5-a]quinoline derivatives, could be constructed in one pot in moderate yields with a broad substrate scope. Mechanistic studies indicated that the reaction proceeded through allenol formation, azide–allene [3 + 2] cycloaddition, and dehydration
报道了一种有效的铟介导的 2-叠氮芳基醛与炔丙基溴的级联环化反应。芳香族 5/6/6-稠合杂环,[1,2,3]三唑并[1,5- a ]喹啉衍生物,可以在一锅中以中等产率和广泛的底物范围构建。机理研究表明,该反应通过丙二烯醇形成、叠氮-丙二烯[3 + 2]环加成和脱水进行。还探索了产品的合成潜力,包括脱氮功能化和 Pd 催化的偶联反应。