Syntheses of diaza-18-crown-6 ligands containing two units each of 4-hydroxyazobenzene, benzimidazole, uracil, anthraquinone, or ferrocene groups
作者:Ning Su、Jerald S. Bradshaw、Xian X. Zhang、Paul B. Savage、Krzysztof E. Krakowiak、Reed M. Izatt
DOI:10.1002/jhet.5570360332
日期:1999.5
functions were prepared. Diaza-18-crown-6 containing two 4-hydroxyazobenzene (3) or two 4-hydroxy-4′-(dimethyl-amino)azobenzene (4) substituents were prepared via a one-pot Mannich reaction. Diaza-18-crown-6 containing two benzimidazole (5), two uracil (6) or two 9,10-anthraquinone (7) substituents were prepared by treating the diazacrown with the appropriate chloromethyl-containing compound. Reductive