A NOVEL BF(3)CENTER-DOT-OET(2)-CATALYZED [3+2] ANNULATION OF N-CBZ-ALPHA-AMINO ALDEHYDES WITH ALLYLTRIMETHYLSILANE - HIGHLY STEREOSELECTIVE SYNTHESIS OF CIS-2,3,5-TRISUBSTITUTED PYRROLIDINES

被引:46
作者
KIYOOKA, S
SHIOMI, Y
KIRA, H
KANEKO, Y
TANIMORI, S
机构
[1] Department of Chemistry, Kochi University, Kochi 780, Akebono-cho
关键词
D O I
10.1021/jo00087a003
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
In the presence of BF3.OEt(2) (0.2 molar equiv), the reactions (-10 degrees C, CH2Cl2) of N-Cbz-alpha-amino aldehydes with allyltrimethylsilane produced pyrrolidines in good yields (70-80%), with high all-cis stereoselectivity at the C12, C-3, and C-5 positions, along with small amounts of the expected homoallylic alcohols.
引用
收藏
页码:1958 / 1960
页数:3
相关论文
共 45 条