ChemInform Abstract: Enantioselective Synthesis of 3-Hydroxypiperidin-2-ones

Autor: Matthew James Welham, Lee McLaren, Martin J. Hateley, Christine L. Willis, Gary Gibbs
Rok vydání: 2010
Předmět:
Zdroj: ChemInform. 30
ISSN: 1522-2667
0931-7597
Popis: 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 and >99% ee.
Databáze: OpenAIRE