Synthesis of Octahydro- and Decahydroquinolines by a One-Pot Cascade Reaction of Tetrasubstituted Enecarbamate
作者:Tomohiro Kurose、Chihiro Tsukano、Yoshiji Takemoto
DOI:10.1021/acs.orglett.7b02122
日期:2017.9.15
followed by ring opening was investigated for the synthesis of octahydroquinolines 4 and decahydroquinolines 5 having a quaternary carbon center at the angular position, which are core structures of the fawcettimine-type alkaloids. A tandem reaction was also established for the synthesis of decahydroquinolines 5 and the tricyclic compound 6 through an iminium ion intermediate, readily produced by acidic
研究了过渡金属催化的环丙烷化和随后的开环反应,以合成在角位置具有季碳中心的八氢喹啉4和十氢喹啉5,它们是非卡替卡明型生物碱的核心结构。还建立了通过亚胺离子中间体合成十氢喹啉5和三环化合物6的串联反应,该中间体很容易通过酸处理环丙烷2产生。