Synthesis 2006(17): 2831-2836  
DOI: 10.1055/s-2006-942521
PAPER
© Georg Thieme Verlag Stuttgart · New York

Cation Radical Aza-Diels-Alder Reaction between N-Arylimines and N-Vinyllactams: A Facile Synthesis of 4-Lactam-N-yl Tetrahydroquinolines

Xiaodong Jia*, Bing Han, Wei Zhang, Xiaoling Jin, Li Yang*, Zhong-Li Liu
National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, P. R. of China
Fax: +86(931)8625657; e-Mail: jiaxd@lzu.edu.cn;
Further Information

Publication History

Received 4 April 2006
Publication Date:
25 July 2006 (online)

Abstract

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-1-yl)tetrahydroquinoline derivative in good yields.