Silver-Catalyzed Three-Component 1,1-Aminoacylation of Homopropargylamines: α-Additions for Both Terminal Alkynes and Isocyanides
作者:Shuo Tong、Cyril Piemontesi、Qian Wang、Mei-Xiang Wang、Jieping Zhu
DOI:10.1002/anie.201704727
日期:2017.6.26
The reaction of secondary homopropargylamines, isocyanides, and water in the presence of a catalytic amount of silver acetate and subsequent purification by chromatography on silica gel afforded substituted proline amides in good to excellent yields. Primary homopropargylamines underwent a cyclizative Ugi–Joullié three-component reaction with isocyanides and carboxylic acids to afford functionalized
仲高炔丙基胺,异氰化物和水在催化量的乙酸银存在下的反应,随后通过硅胶色谱纯化,以良好至优异的产率提供了取代的脯氨酸酰胺。初级高炔丙基胺与异氰酸酯和羧酸进行环化的Ugi–Joullié三组分反应,以提供官能化的N-酰基脯氨酸酰胺。在4-烷氧基和4,5-二取代的脯氨酸衍生物的合成中观察到高非对映选择性。这项工作代表了末端炔烃的三组分环化1,1-氨基酰化的第一个例子。