Silver(<scp>i</scp>)/base-promoted propargyl alcohol-controlled regio- or stereoselective synthesis of furan-3-carboxamides and (<i>Z</i>)-enaminones
作者:Sabera Sultana、Jae-Jin Shim、Sung Hong Kim、Yong Rok Lee
DOI:10.1039/c8ob01791c
日期:——
A novel and facile regioselective synthesis of furan-3-carboxamides by a silver(I)/base-promoted reaction of propargyl alcohol with 3-oxo amides has been demonstrated. This one-pot protocol provides a rapid synthetic approach to diverse trisubstituted furan-3-carboxamides via cascade nucleophilic addition, intramolecular cyclization, elimination, and isomerization reactions. Employing a substituted
已经证明了通过炔丙醇与3-氧代酰胺的银(I)/碱促进的反应的呋喃-3-甲酰胺的新颖且容易的区域选择性合成。这一一锅方案通过级联亲核加成,分子内环化,消除和异构化反应,为多种三取代呋喃-3-羧酰胺提供了一种快速的合成方法。通过使用取代的炔丙醇,由3-氧代酰胺经C–N键断裂,通过Ag 2 CO 3促进的反应,具有高立体选择性的(Z)-烯胺酮。