POLYMER-SUPPORTED CHIRAL PROMOTERS FOR THE ASYMMETRIC ALDOL REACTION OF BENZALDEHYDE WITH SILYL KETENE ACETAL

被引:18
作者
KIYOOKA, S
KIDO, Y
KANEKO, Y
机构
[1] Department of Chemistry, Kochi University, Kochi, 780, Akebono-cho
关键词
D O I
10.1016/S0040-4039(00)77074-2
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Chiral polymers (A and B) having pendant alpha-amino acid moiety were prepared by suspension copolymerization. A polymer-supported chiral borane, formed from chiral polymer A and BH3.THF, effectively promoted the aldol reaction in THF of benzaldehyde with silyl ketene acetal in a similar enantioselectivity to that using the corresponding soluble counterpart. Some interesting polymer effects were also found on solvent and reaction temperature. .
引用
收藏
页码:5243 / 5246
页数:4
相关论文
共 16 条