Reactivity of γ-Hydroxy-α,β-acetylenic Esters with Amines: Facile Synthesis of the Optically Active 4-Amino-2(5<i>H</i>)-furanones
作者:Li-Hong Zhou、Xiao-Qi Yu、Lin Pu
DOI:10.1021/jo802592h
日期:2009.3.6
A convenient synthesis of the optically active 4-amino-2(5H)-furanones is discovered by combining an asymmetric alkyne addition to aldehydes and a subsequent aliphatic amine addition. Both steps can be conducted at room temperature and the products are obtained with high enantioselectivity (84−90% ee). The 4-amino-2(5H)-furanones are also found to undergo very facile electrophilic substitution reactions
通过将不对称炔烃加成至醛和随后脂族胺加成相结合,发现了旋光的4-氨基-2(5 H)-呋喃酮的简便合成方法。这两个步骤都可以在室温下进行,并且获得的产物具有高对映选择性(84-90%ee)。还发现4-氨基-2(5 H)-呋喃酮进行非常容易的亲电子取代反应。