作者:Nataliya A. Tolmacheva、Igor I. Gerus、Violetta G. Dolovanyuk、Ivan S. Kondratov、Günter Haufe
DOI:10.1002/ejoc.200900684
日期:2009.10
3-(benzoylamino)-6-(polyfluoroalkyl)-2H-pyran-2-ones. The key step of the synthesis was the hydrogenation of the pyrone ring. Stereoselectivity and yields depended dramatically on the reaction conditions and the nature of the polyfluoroalkyl group. Various conditions were used for the preparation of both mixtures of diastereomers and pure diastereomers of the target amino acids. The obtained δ-(polyfluoroalkyl)-δ-hydroxy-α-amino
新的 δ-(多氟烷基)-δ-羟基-α-氨基酸由相应的起始 3-(苯甲酰氨基)-6-(多氟烷基)-2H-吡喃-2-酮合成。合成的关键步骤是吡喃酮环的氢化。立体选择性和产率极大地取决于反应条件和多氟烷基的性质。使用各种条件来制备目标氨基酸的非对映异构体混合物和纯非对映异构体。获得的 δ-(多氟烷基)-δ-羟基-α-氨基酸作为 2-氨基-5-羟基戊酸和谷氨酸的类似物很受关注。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany , 2009)