PHENYLAZOPHENOL QUINONE PHENYLHYDRAZONE TAUTOMERISM IN CHROMOGENIC CRYPTANDS AND CORANDS WITH INWARD-FACING PHENOLIC UNITS AND THEIR ACYCLIC ANALOGS

被引：37

作者：

CHAPOTEAU, E ^{[1
]}

CZECH, BP ^{[1
]}

GEBAUER, CR ^{[1
]}

KUMAR, A ^{[1
]}

LEONG, K ^{[1
]}

MYTYCH, DT ^{[1
]}

ZAZULAK, W ^{[1
]}

DESAI, DH ^{[1
]}

LUBOCH, E ^{[1
]}

KRZYKAWSKI, J ^{[1
]}

BARTSCH, RA ^{[1
]}

机构：

[1] TEXAS TECH UNIV,DEPT CHEM & BIOCHEM,LUBBOCK,TX 79409

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1991年 / 56卷 / 07期

关键词：

D O I：

10.1021/jo00007a057

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of 4-(4'-nitrophenol)azophenol compounds is prepared in which ether oxygen-containing substituents are attached at the 2- and 6-positions or connect the 2- and 6-positions to incorporate the chromophoric unit into corand or cryptand structures with inward-facing phenolic groups. The phenylazophenol-quinone phenylhydrazone tautomerism of these compounds, as probed by ultraviolet-visible spectroscopy, reveals a pronounced effect of the structure of the ether oxygen-containing substituents or bridging unit upon the tautomeric equilibrium. Chromogenic responses of five cryptands with inward-facing phenolic groups to sodium and potassium ions are determined and compared.

引用

页码：2575 / 2579

页数：5

共 23 条

[1] AZO-HYDRAZONE TAUTOMERISM OF HYDROXYAZO COMPOUNDS - A REVIEW [J].