A New Ring-opening Chromene Molecule: Colorimetric Detection of Cyanide Anion

作者：Huo Fang Jun; Su Jing; Sun Yuan Qiang; Yin Cai Xia^*; Chao Jian Bin

来源：Chemistry Letters, 2010, 39(7): 738-740.

DOI：10.1246/cl.2010.738

A new cyanide anion colorimetric probe was developed using a chromene derivative, 7-nitro-2,3-dihydro-1H-cyclopenta[b]chromen-1-one (1). The molecule exhibited much higher selectivity and sensitivity for detecting cyanide anion compared with other anions, F-, Cl-, Br-, 1(-), SCN-, AcO-, NO3-, ClO4-, SO42-, PO43-, SO32-, CO32-, and C2O42-, in aqueous media through a visual color change from colorless to yellow. The mechanism was proposed to be a novel chromene ring-opening, resulting from a nucleophilic attack on the probe 1 by CN- anion.

• 出版日期2010-7-5
• 单位山西大学; 中国科学院长春应用化学研究所