作者:Gary Gibbs、Martin J. Hateley、Lee McLaren、Matthew Welham、Christine L. Willis
DOI:10.1016/s0040-4039(99)80114-2
日期:1999.1
An efficient synthesis of (S)- and (R)-3-hydroxypiperidin-2-ones from methyl 5-nitro-2-oxopentanoate is described. A one-pot enzyme catalysed hydrolysis of the ester and reduction of the ketone gave enantiopure 2-hydroxy-5-nitropentanoic acids which on esterification, catalytic hydrogenation over a platinum(IV) oxide catalyst and intramolecular cyclisation gave the target compounds in 93% overall yield
描述了由5-硝基-2-氧代戊酸甲酯有效合成(S)-和(R)-3-羟基哌啶-2-酮。一锅酶催化酯的水解和酮的还原,得到对映体纯的2-羟基-5-硝基戊酸,经酯化,氧化铂(IV)催化剂催化加氢和分子内环化后,目标化合物的总含量为93%收率和> 99%ee。