MAGNESIUM BROMIDE-PROMOTED E/Z-ISOMERIZATION OF CARBONYL-CONJUGATED NITRONES AND HIGHLY STEREOSELECTIVE AND REGIOSELECTIVE CYCLOADDITIONS TO ALLYLIC ALCOHOL DIPOLAROPHILES

被引：67

作者：

KANEMASA, S ^{[1
]}

TSURUOKA, T ^{[1
]}

机构：

[1] KYUSHU UNIV, GRAD SCH ENGN SCI, DEPT MOLEC SCI & TECHNOL, KASUGA, FUKUOKA 816, JAPAN

来源：

CHEMISTRY LETTERS | 1995年 / 01期

关键词：

D O I：

10.1246/cl.1995.49

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A Lewis acid promotes the E- to Z-isomerization of carbonyl-conjugated nitrones. The MgBr2.Et(2)O-catalyzed cycloadditions to allylic alcohols lead to the exclusive formation of the exo-stereoisomers of isoxazolidine-5-methanols. Participation of the Z-nitrone/MgBr2 complexes is suggested.

引用

页码：49 / 50

页数：2