Gold-Catalyzed Intramolecular Carbocyclization of Alkynyl Ketones Leading to Highly Substituted Cyclic Enones
                                
                                    
                                        作者:Tienan Jin、Yoshinori Yamamoto                                    
                                    
                                        DOI:10.1021/ol702455v
                                    
                                    
                                        日期:2007.12.1
                                    
                                    The reaction of the internal alkynyl ketones 1 (n = 1) under the combined catalyst, AUCl(3) and AgSbF6, gave the enones 2 in good to high yields, whereas that of the terminal alkynyl ketones 1 (n = 0) under the combined catalyst, AuCl3 and AgOTf, afforded the cyclic enones 3.