双吲哚-重氮缀合物的合成及其作为比色阴离子受体的性能。

Synthesis of biindole-diazo conjugates as a colorimetric anion receptor.

机构信息

Center of Bioactive Molecular Hybrids and Department of Chemistry, Yonsei University, Seoul 120-749, Korea.

出版信息

Org Lett. 2010 Jun 4;12(11):2634-7. doi: 10.1021/ol100830b.

PMID:20446657

Abstract

A colorimetric anion receptor based on an indole scaffold has been synthesized by incorporating an azobenzene chromophore to the 5-position of indole. The receptor binds anions by hydrogen bonds which are effectively transmitted through resonance to the chromophore to give rise to color changes. The cyanide ion induced a pronounced color change from light yellow to reddish orange, but less intense or negligible changes were observed with the other anions examined here.

摘要

一种基于吲哚骨架的比色阴离子受体通过将偶氮苯生色团引入吲哚的 5 位合成。受体通过氢键与阴离子结合，氢键通过共振有效地传递到生色团，从而引起颜色变化。氰离子诱导从浅黄色到红橙色的明显颜色变化，但与这里研究的其他阴离子相比，观察到的变化不太强烈或可以忽略不计。