New family of polyamine macrocycles containing 2,5-diphenyl[1,3,4]oxadiazole as a signaling unit. Synthesis, acid–base and spectrophotometric properties
作者:Gianluca Ambrosi、Mauro Formica、Vieri Fusi、Luca Giorgi、Eleonora Macedi、Mauro Micheloni、Giovanni Piersanti、Roberto Pontellini
DOI:10.1039/b921053a
日期:——
Synthesis and acid–base properties for three fluorescent polyamine macrocycles 9,12,15,24,25-pentaaza-26-oxatetracyclo[21.2.1.02,7.017,22]hexaicosa-2,4,6,17,19,21,23,251-octaene (L1), 9,12,15,18,27,28-hexaaza-29-oxatetracyclo[24.2.1.02,7.020,25]enneicosa-2,4,6,20,22,24,26,281-octaene (L2) and 9,12,15,18,21,30,31-heptaaza-32-oxatetracyclo[27.2.1.02,7.023,28]diatriconta-2,4,6,23,25,27,29,311-octaene
三种荧光多胺大环9,12,15,24,25-戊基氮杂-26-草酸酯四环[21.2.1.0 2,7 .0 17,22 ] hexaicosa-2,4,6,17,19的合成和酸碱性质,21,23,25 1-辛烯(L1),9,12,15,18,27,28-六氮杂-29-草酸酯四环[24.2.1.0 2,7 .0 20,25 ] enneicosa-2,4,6 ,20,22,24,26,28 1-辛烯(L2)和9,12,15,18,21,30,31-heptaaza-32-oxatetracyclo [27.2.1.0 2,7 .0 23,28 ] diatriconta报告了-2,4,6,23,25,27,29,31 1-辛烯(L3)。每个配体包含2,5-二苯基[1,3,4]恶二唑(PPD)单元并入多胺大环中。L1–L3的质子化常数通过电位计测量在0.15 mol dm -3下确定 氯化钠在298