Synthesis of 2,3-disubstituted pyrroles and pyridines from 3-halo-1-azaallylic anions

被引:32
作者
Aelterman, W
De Kimpe, N
Tyvorskii, V
Kulinkovich, O
机构
[1] Univ Ghent, Fac Agr & Appl Biol Sci, Dept Organ Chem, B-9000 Ghent, Belgium
[2] Belarusian State Univ, Dept Organ Chem, Minsk 220050, BELARUS
关键词
D O I
10.1021/jo000724t
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A new synthesis of 2,3-disubstituted pyrroles and pyridines:,is described. The reaction of 3-halo-1-azaallylic carbanions, regiospecifically generated from alpha -halogenated ketimines, with omega -iodoazides led to the regiospecific formation of omega -azido-alpha -haloketimines. Treatment of these functionalized imines with tin(II) chloride afforded halogenated five-and six-membered cylic imines, which were transformed under mild conditions into 2,3-disubstituted pyrroles and pyridines. The stereoselective reduction of 2,3-dialkyl-3-chloro-1-pyrrolines to afford cis-2,3-dialkyl-3-chloropyrrolidines is also reported.
引用
收藏
页码:53 / 58
页数:6
相关论文
共 21 条