The aza-Prins reaction of 3-vinyltetrahydroquinolines with aldehydes proceeded smoothly in the presence of hydrogen halides, and the tricyclic benzazocine derivatives were isolated in good to high yields. The reaction would proceed through the formation and cyclization of the iminium ion intermediate.
3-
乙烯基四氢喹啉与醛的aza-Prins反应在卤化氢存在下进行得很顺利,并且以高收率或高收率分离出了
三环苯并偶氮衍
生物。反应将通过
亚胺离子中间体的形成和环化进行。