Synthesis of 2-Alkenylquinoline by Reductive Olefination of Quinoline <i>N</i>-Oxide under Metal-Free Conditions
作者:Hong Xia、Yuanhong Liu、Peng Zhao、Shaohua Gou、Jun Wang
DOI:10.1021/acs.orglett.6b00522
日期:2016.4.15
Synthesis of 2-alkenylquinoline by reductive olefination of quinoline N-oxide under metal-free conditions is disclosed. Practically, the reaction could be performed with quinoline as starting material via a one-pot, two-step process. A possible mechanism is proposed that involves a sequential 1,3-dipolar cycloaddition and acid-assisted ring opening followed by a dehydration process.
公开了在无金属条件下通过喹啉N-氧化物的还原性烯烃化来合成2-烯基喹啉。实际上,该反应可以通过一锅两步法以喹啉为起始原料进行。提出了一种可能的机理,该机理涉及顺序的1,3-偶极环加成和酸辅助的开环,然后进行脱水过程。