1: 81 percent / n-BuLi / hexane; tetrahydrofuran / 24 h / 20 °C 2: 100 percent / (N,N'-Mes2-2,3-dihydroimidazol-2-yl)Ru=CHPh(PCy3)Cl2 / CH2Cl2 / 2 h / 40 °C View Scheme