Cycloaddition of N-arylimines with N-vinylpyrrolidin-2-one or N-vinylazepan-2-one was efficiently induced by tris(4-bromophenyl)aminium hexachloroantimonate producing stereoselectively the corresponding cis-2-aryl-4-(2-oxopyrrolidin-1-yl)- or cis-2-aryl-4-(2-oxoazepan-l-yl)tetrahydroquinoline derivative in good yields.
N-芳基
亚胺与 N-vinylpyrrolidin-2-one 或 N-vinylazepan-2-one 的环加成由三(4-
溴苯基)六氯
锑酸
铵有效诱导,立体选择性地产生相应的 cis-2-aryl-4-(2-oxopyrrolidin- 1-yl)-或cis-2-aryl-4-(2-oxoazepan-l-yl)
四氢喹啉衍
生物,收率良好。