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New β-amino thiols as efficient catalysts for highly enantioselective alkenylzinc addition to aldehydes
被引:33
|作者:
Tseng, SL
[1
]
Yang, TK
[1
]
机构:
[1] Natl Chung Hsing Univ, Dept Chem, Taichung 40227, Taiwan
关键词:
D O I:
10.1016/j.tetasy.2004.11.093
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A series of new optically active beta-amino thiols and thiolacetates prepared from the simple natural amino acid, (S)-(-)-valine, were found to be effective catalysts for the enantioselective addition of alkenylzinc to alclehydes and thereby providing an efficient route for chiral (E)-allylic alcohols with ees of up to >99% in the presence of 7a (1 mol %). (C) 2005 Published by Elsevier Ltd.
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页码:773 / 782
页数:10
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