Visible Light-Induced Regioselective Intermolecular [2 + 2]-Cycloaddition of Alkyne and 2(1<i>H</i>)-Quinolone Derivatives
作者:Hao Hai、Shaoheng Qin、Yanzhi Zhang、Wangsheng Liu、Jin Feng、Hao Guo、Fritz E. Kühn、Yin Liu
DOI:10.1021/acs.joc.3c02685
日期:2024.1.19
intermolecular [2 + 2]-cycloaddition reaction between alkenes and alkynes using thioxanthone and Cu(OTf)2 as cocatalysts. Various quinolin-2(1H)-ones, featuring diverse substituted groups, were successfully employed in this reaction, resulting in the synthesis of a series of 4,8b-dihydrocyclobuta[c]quinolin-3(2aH)-ones. Our methodology presents a novel synthetic approach for alkene-alkyne [2 + 2]-cycloaddition
我们使用噻吨酮和 Cu(OTf) 2作为助催化剂,开发了可见光诱导的烯烃和炔烃之间的分子间 [2 + 2]-环加成反应。各种具有不同取代基的喹啉-2(1 H )-酮被成功地用于该反应,合成了一系列4,8b-二氢环丁[ c ]喹啉-3(2a H )-酮。我们的方法提出了一种新颖的烯烃-炔烃[2 + 2]-环加成合成方法,提供具有卓越区域选择性的环丁烯衍生物。