作者:Timofey P. Martyanov、Alexandra A. Kudrevatykh、Evgeny N. Ushakov、Denis V. Korchagin、Ilia V. Sulimenkov、Sergey G. Vasil'ev、Sergey P. Gromov、Lyubov S. Klimenko
DOI:10.1016/j.tet.2021.132312
日期:2021.7
The article addresses the synthesis, structure and properties of 2-benzoylamino-1-hydroxyanthraquinone (1a), which can function as a selective colorimetric sensor for the cyanide anion in aqueous media. Compound 1a was prepared in two simple steps in good yield and its structure was confirmed by X-ray diffraction analysis. UV–Vis and NMR spectroscopy, mass spectrometry and quantum chemistry studies
该文章讨论了 2-苯甲酰氨基-1-羟基蒽醌 ( 1a )的合成、结构和性质,它可以作为水性介质中氰化物阴离子的选择性比色传感器。通过两个简单的步骤以良好的收率制备了化合物1a,并通过 X 射线衍射分析证实了其结构。UV-Vis 和 NMR 光谱、质谱和量子化学研究表明,在 MeCN-H 2 O 混合物 (95:5, v/v) 中,氰化物使蒽醌的羟基电离,从而产生强烈的红移效应。氰化物阴离子与1a的缔合常数测得为 10 4.88 M –1; 检测限约为 0.22 μM。由于酰胺氢原子与离子化羟基的氧原子之间的氢键,蒽醌核心的2位苯甲酰氨基的存在对1a的阴离子形式具有稳定作用。