Brönsted-Acid-Catalyzed Asymmetric Three-Component Reaction of Amines, Aldehydes, and Pyruvate Derivatives. Enantioselective Synthesis of Highly Functionalized γ-Lactam Derivatives
作者:Xabier del Corte、Aitor Maestro、Javier Vicario、Edorta Martinez de Marigorta、Francisco Palacios
DOI:10.1021/acs.orglett.7b03397
日期:2018.1.19
Chiral phosphoric acids are efficient organocatalysts for the asymmetric three-component reaction of amines, aldehydes, and pyruvate derivatives. Simultaneous condensation of amines with both carbonylic compounds followed by a hydrogen bonding activated nucleophilic addition of enamines to imines affords densely functionalized enantioenriched 1,5-dihydro-2H-pyrrol-2-ones. These substrates can be used
手性磷酸是用于胺,醛和丙酮酸衍生物的不对称三组分反应的有效有机催化剂。胺与两种羰基化合物同时缩合,然后氢键活化烯胺向亚胺的亲核加成,得到致密的对映体富集的1,5-二氢-2 H-吡咯-2-酮。这些底物可用于随后的非对映选择性转化中,以提供对映纯的γ-内酰胺衍生物。