Silver(<scp>i</scp>)–N-heterocyclic carbene catalyzed multicomponent reactions: a facile synthesis of multisubstituted pyridines
作者:Shravankumar Kankala、Ramakanth Pagadala、Suresh Maddila、Chandra Sekhar Vasam、Sreekantha B. Jonnalagadda
DOI:10.1039/c5ra16582b
日期:——
A room temperature four component reaction between aromatic aldehydes, CH2(CN)2and NH4OAc with ketones mediated by Ag(i)–NHC pre-catalysts to produce multisubstituted pyridines in a short reaction time in eco-friendly ethanol was described.
Abstract A first example of environmentally benign zinc complex catalyzed one-pot four-component reaction between malononitrile, ketone, ammonium acetate and aromatic aldehyde for the facilesynthesis of fully substituted pyridines just within 2 min in environmentally friendly solvent ethanol has been optimized. GRAPHICAL ABSTRACT