【摘要】 通过11,12-苯并-1,7,10,13-四氧杂-4-氮杂环十五烷-11-烯(苯并氮杂-15-冠-5)分别与间二苄溴, 间苯二甲酰氯和对苯二甲酰氯反应, 合成了N,N’-间二苄基双(苯并氮杂-15-冠-5) (1)、N,N’-间苯二甲酰基双(苯并氮杂-15-冠-5) (2)和N, N’-对苯二甲酰基双(苯并氮杂-15-冠-5) (3) 等三个芳香桥式双(苯并氮杂-15-冠-5)衍生物, 并解析了化合物3 的晶体结构.进而采用溶剂萃取的方法研究了它们与一价金属阳离子的键合行为. 结果表明, 双冠醚2 对碱金属钠离子和重金属铊离子表现出较高的选择萃取能力, 而双冠醚1 对重金属银离子表现出较高的选择萃取能力.更多还原

【Abstract】 Three new bis(benzoaza-15-crown-5) derivatives, i.e., N,N’-m-phenylene-dimethyl-bis(benzoaza- 5-crown-5) (1), N,N’-isophthaloyl-bis(benzoaza-15-crown-5) (2) and N,N’-terephthaloyl-bis(benzoaza- 15-crown-5) (3), have been synthesized by reaction of 11,12-benzo-1,7,10,13-tetraoxa-4-aza-cyclopentadec- 11-ene (benzoaza-15-crown-5) with α,α’-dibromo-m-xylene, isophthaloyl chloride and terephthaloyl chlo- ride, respectively, and an X-ray crystallographic structure was obtained for 3. Their cation binding behavior to alkali and heavy metal ions was evaluated by solvent extraction of aqueous metal picrates. The result ob- tained indicates that 2 displays high selectivity to Na+ and Ti+, while 1 shows high extractability and selec- tivity to Ag+.更多还原