A mild and efficient AgSbF6-catalyzed synthesis of fully substituted pyrroles through a sequential propargylation/amination/cycloisomerization reaction
作者:Satheesh Gujarathi、Xingui Liu、Lin Song、Howard Hendrickson、Guangrong Zheng
DOI:10.1016/j.tet.2014.05.073
日期:2014.8
fully substituted pyrroles via a sequential propargylation/amination/cycloisomerization was accomplished using AgSbF6 as a catalyst. The one-pot three-component reaction of propargylic alcohols, 1,3-dicarbonyl compounds, and primary amines proceeds at a mild temperature, which prevents the formation of furan by-product. The reaction was also successfully applied to the more basic aliphatic amines with
使用AgSbF 6作为催化剂,通过顺序炔丙基化/胺化/环异构化开发了完全取代的吡咯的有效合成。炔丙醇、1,3-二羰基化合物和伯胺的一锅三组分反应在温和的温度下进行,可防止呋喃副产物的形成。通过添加 1.1 当量的乙酸,该反应也成功地应用于碱性更强的脂肪胺。