作者:Hiroshi Imagawa、Takahiro Kurisaki、Mugio Nishizawa                                    
                                    
                                        DOI:10.1021/ol048730p
                                    
                                    
                                        日期:2004.10.1
                                    
                                    2-Methylfurans were prepared by an effective cyclization of 1-alkyn-5-ones in the presence of mercuric triflate as the catalyst under very mild reaction conditions with high catalytic turnover up to 100 times. Benzene, toluene, or dichloromethane was the solvent of choice.