名称:
                                Acid-Promoted Isomerization of a Tungsten−η1-2,5-Dihydropyrrolyl Complex to Its Tungsten−η1-2,3-Dihydropyrrolyl Isomer
                             
                            
                                摘要:
                                Treatment of the tungsten-eta(1)-2,5-dihydropyrrolyl complex 3 with a mixture of Ph3CBF4 and water in cold CH2Cl2 produced the tungsten-eta(1)-2,3-dihydropyrrolium cation 7; this cation gradually lost one proton in CH2Cl2 at 23 degrees C, to yield the tungsten-eta(1)-2,3-dihydropyrrolyl species 5.