Alkene Metathesis: Synthesis of Panaxytriol (Lee), Isofagomine (Imahori and
Takahata), Elatol (Stoltz), 5-F2t-Isoprostane (Snapper), and Ottelione B (Clive) Alkene metathesis has been used to prepare more and more challenging natural products. The first and second generation Grubbs catalysts 1…