Highly Functionalised Enantiopure 4-Hydroxypyridine Derivatives by a Versatile Three-Component Synthesis
作者:Christian Eidamshaus、Hans-Ulrich Reissig
DOI:10.1002/adsc.200800789
日期:2009.5
Abstractmagnified imageThe scope of a novel alkoxyallene‐based pyridine synthesis was expanded to enantiopure carboxylic acids and nitriles as starting materials. The enantiomeric purity of the chiral α‐secondary carboxylic acids and nitriles was completely preserved during this reaction sequence thus allowing the one‐pot preparation of a whole range of 4‐hydroxypyridines or their 4‐pyridinone tautomers in good yields.