The treatment of ferrocenophanes with AgO, Ag2O or AgClO4/CH3ONa in methanol gave oxidized products at the α-methylene of the bridge. In the reaction of [m][n]ferrocenophanes (m, n = 3, 4, 5; m > n), the α-methylene of the longest bridge [m] was oxidized in preference to that of the shorter bridge [n]. A reaction mechanism via a radical and/or cation species on the α-methylene of the bridge is proposed
在
甲醇中用 AgO、
Ag2O 或 AgClO4/CH3ONa 处理
二茂铁,在桥的 α-亚甲基处产生氧化产物。在 [m][n]
二茂铁 (m, n = 3, 4, 5; m > n) 的反应中,最长桥 [m] 的 α-亚甲基被氧化优先于较短桥 [n ]。提出了通过桥的 α-亚甲基上的自由基和/或阳离子物种的反应机制。