Synthesis of 3-Azabicyclo[<i>m</i>.2.0] Ring Systems via a Copper-Catalyzed Cascade Reaction of Diazo Compounds with 1,<i>n</i>-Allenynes
作者:Min He、Nuan Chen、Lala Liu、Yuqi Zhu、Qing Li、Hongguang Li、Ming Lang、Jian Wang、Shiyong Peng
DOI:10.1021/acs.joc.0c00149
日期:2020.3.20
n-allenynes (n = 6,7) was reported, which provides efficient access to various functionalized 3-azabicyclo[m.2.0] frameworks (m = 5,6) in moderate to excellent yields under mild reaction conditions. The reaction proceeds through intermolecular cross-coupling to form bisallene intermediates, followed by subsequent intramolecular [2+2] cycloaddition.
据报道,重氮化合物与1,n-炔烃(n = 6,7)进行铜催化的级联反应,可在中等温度下有效地访问各种功能化的3-azabicyclo [m.2.0]骨架(m = 5,6)。在温和的反应条件下达到优异的收率。反应通过分子间的交叉偶联进行,形成双烯丙基中间体,随后进行分子内的[2 + 2]环加成反应。