Facile three-component domino reactions for the synthesis of 2-arylimidazo[1,2-a]pyridines and 2-arylimidazo[2,1-a]isoquinolines
                                
                                    
                                        作者:Pitchaimani Prasanna、Sundaravel Vivek Kumar、Pethaiah Gunasekaran、Subbu Perumal                                    
                                    
                                        DOI:10.1016/j.tetlet.2013.04.126
                                    
                                    
                                        日期:2013.7
                                    
                                    The three-component domino reactions of pyridine/isoquinoline, phenacyl bromide, and substituted (E)-N-hydroxyarylimidoyl chloride in the presence of triethylamine afforded a series of 2-arylimidazo[1,2-a]pyridines and 2-arylimidazo[2,1-a]isoquinolines. This one pot three-component transformation presumably proceeds via ylide generation/annulation/fragmentation/clehydration domino sequence of reactions. (C) 2013 Elsevier Ltd. All rights reserved.