Synthesis of Benzoindolizines through 1,5-Electrocyclization/Oxidation Cascades
作者:Si-Wei Liu、Ying-Juan Gao、Yin Shi、Lin Zhou、Xue Tang、Hai-Lei Cui
DOI:10.1021/acs.joc.8b02065
日期:2018.11.16
This study presents a convenient synthesis of pyrrolo[1,2-a]quinolines and pyrrolo[2,1-a]isoquinolines with simple quinolines or isoquinolines and Morita–Baylis–Hillman carbonates in the presence of copper acetate. A range of functionalized benzoindolizines could be assembled through an SN2′/deprotonation/1,5-electrocyclization/oxidation cascade pathway in a one-step process.
这项研究提出了在乙酸铜存在下,用简单的喹啉或异喹啉和森田-贝利斯-希尔曼碳酸盐方便地合成吡咯并[1,2- a ]喹啉和吡咯并[2,1- a ]异喹啉。一系列功能化的苯并吲哚并嗪可以一步一步通过S N 2'/去质子化/ 1,5-电环化/氧化级联途径进行组装。