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|標題:||New beta-amino thiols as efficient catalysts for highly enantioselective alkenylzinc addition to aldehydes||作者:||Tseng, S.L.
|關鍵字:||asymmetric-synthesis;organozinc reagents;carbonyl-compounds;grignard-reagents;alcohols;diethylzinc;zinc;disulfide||Project:||Tetrahedron-Asymmetry||期刊/報告no：:||Tetrahedron-Asymmetry, Volume 16, Issue 4, Page(s) 773-782.||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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