A cyanide ion chemosensor: 4-amino-7-methoxy-2-oxo-2H-spiro[acenaphthylene-1,2- chromene]-3-carbonitrle

In this paper, 4-amino-7-methoxy-2-oxo-2H-spiro[acenaphthylene-1,2-chromene]-3-carbonitrle and their derivatives were synthesized via three-component reaction in the presence of Fe3O4@SiO2@Si-Pr-NH(CH2)2NH2 catalyst The spectra absorption of synthesized compound was analyzed in the presence of various anions (Cl-, CN-, SCN-, Br-, F-, OH-, CH3COO-, I-, Cr2O7 2-, HSO3 -, HSO4 2-, CO3 2-, HPO4 2-, NO2 - and NO3 -) by UV-Visible spectroscopy in CH3CN solvent. The sensing properties of 4-amino-7-methoxy-2-oxo-2H-spiro[acenaphthylene-1,2-chromene]-3- carbonitrle were studied, which was demonstrated highly selective activity towards CN- ions in CH3CN.

Keywords:

Chemosensors , Cyanide ion , multi-component reactions , Spiro pyrane