Neutral Molecule Receptor Systems Using Ferrocene's “Atomic Ball Bearing” Character as the Flexible Element
作者:Chensheng Li、Julio C. Medina、Glenn E. M. Maguire、Ernesto Abel、Jerry L. Atwood、George W. Gokel
DOI:10.1021/ja9600284
日期:1997.2.1
Fourteen novel ferrocene derivatives have been designed to serve as receptors for low molecular weight diamines. The compounds that have been prepared and fully characterized possess two ferrocenedicarboxylic acid residues bridged by amide formation in their respective 1‘-positions by 4,4‘-benzidinyl (15), 3,3‘-dimethoxy-4,4‘-benzidinyl (16), 2,7-fluorenyl (17), 3-methoxy-2,7-fluorenyl (18), 4-N-piperazinoanilinyl
十四种新型二茂铁衍生物已被设计用作低分子量二胺的受体。已制备并完全表征的化合物具有两个二茂铁二羧酸残基,它们通过酰胺形成在其各自的 1'-位置由 4,4'-联苯胺基 (15)、3,3'-二甲氧基-4,4'-联苯胺基桥接( 16)、2,7-芴基(17)、3-甲氧基-2,7-芴基(18)、4-N-哌嗪基苯胺基(19)、N,N'-4,4'-双哌啶基(20),和4,13-diaza-18-crown-6 (21)。在两种情况下,二茂铁羧酸通过使用 1-亚甲基连接的间隔基进行桥接。这些情况下的桥是 4,13-diaza-18-crown-6 (22) 和 1,5-diaminoanthraquinone (24)。在单一情况下,二茂铁羧酸被 1,5-二羰基萘 (25) 桥接。在另外一种情况下,该桥是通过形成亚胺然后氢化而产生的,但两种化合物 (26, 27) 都证明是相对不稳定的。尝试增加溶解度得到了