Nucleophilic 5-endo-trig cyclizations of N-homoallylic sulfonamides:: a facile method for the construction of pyrrolidine rings

被引:22
作者
Ichikawa, Junji [1 ]
Lapointe, Guillaume [1 ]
Iwai, Yu [1 ]
机构
[1] Univ Tokyo, Dept Chem, Grad Sch Sci, Bunkyo Ku, Tokyo 113, Japan
关键词
D O I
10.1039/b618251h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Normally disfavored 5-endo-trig cyclizations proceed in N- homoallylsulfonamides bearing a CF3, CCl3, CO2Et or CN group at the C-3 position, via an intramolecular S(N)2'-type or addition reaction to construct pyrrolidine rings, even though the system allows a more favorable 5-exo-trig pathway.
引用
收藏
页码:2698 / 2700
页数:3
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