Enantioselective Monoreduction of 2-Alkyl-1,3-diketones Mediated by Chiral Ruthenium Catalysts. Dynamic Kinetic Resolution
作者:Florence Eustache、Peter I. Dalko、Janine Cossy
DOI:10.1021/ol025527q
日期:2002.4.1
The reduction of 2-alkyl-1,3-diketones using (R,R)- or (S,S)-RuCl[N-(tosyl)-1,2-diphenylethylenediamine](p-cymene) in the presence of formic acid and triethylamine affords syn-2-alkyl-3-hydroxy ketones as the major products with high enantioselectivity. [reaction: see text]
在存在甲酸的情况下,使用(R,R)-或(S,S)-RuCl [N-(甲苯磺酰基)-1,2-二苯基乙二胺](对伞花烯)还原2-烷基-1,3-二酮酸和三乙胺可提供对位-2-烷基-3-羟基酮作为主要产物,具有高对映选择性。[反应:看文字]