appropriate α-ketones followed by reduction to prepare 1,1′-pentamethyleneferrocene, VIII, 1,1′,3,3′-bis(pentamethylene)ferrocene, XX, and 1,1′,2,2t́,4,4′-tris(penta-methylene)ferrocane, XXX. The bridge-enlarging reactions are discussed, and the PMR spectral behavior of the polybridged ferrocenes is briefly discussed.
在适当的α-酮上进行两次或连续的桥扩反应,然后还原以制备1,1'-五亚
甲基二茂铁,VIII,1,1',3,3'-双(五亚甲基)
二茂铁,XX和1,1 ′,2,2t′,4,4′-三(五亚甲基)
二茂铁,XXX。讨论了扩大桥的反应,并简要讨论了多桥
二茂铁的PMR光谱行为。