1847-06-9Relevant academic research and scientific papers
A Turn-On Fluorescence Chemosensor for Cyanide in Aqueous Media Based on a Nucleophilic Addition Reaction
Chen, Jie,Li, Wenting,Li, Qiao,Lin, Qi,Yao, Hong,Zhang, Youming,Wei, Taibao
, p. 1165 - 1169 (2017)
We synthesized a new cyanide (CN?) chemosensor CX based on a nucleophilic addition reaction prompted by cyanide ion, which could be used for highly selective and sensitive fluorescence turn-on detection of cyanide in aqueous media. The CX showed selective fluorescence recognition for CN?, the miscellaneous competitive anions (F?, Cl?, Br?, I?, AcO?, H2PO4?, HSO4?, ClO4?, S2?, PO43?, CO32? and SCN?) did not lead to any significant interference. The detection limit of the sensor towards CN? is 1.15 × 10?7 mol?L?1. The sensor has been successfully applied to estimate the cyanide ion in seeds of cherries. Test strips based on CX were fabricated, which could be used as a convenient and efficient CN? test kit to detect CN? in aqueous solution for “in-the-field” measurement.
Synthesis of novel 3-substitued coumarin carboxamides with biological interest and their spectral studies
Das, Asish R.,Medda, Arunima,Singha, Raghunath,Samanta, Anuva,Guchhait, Nikhil
experimental part, p. 1124 - 1129 (2010/03/03)
The 3-substitued coumarin carboxamides are prepared by a highly efficient one-pot procedure. The coupling reaction of coumarin carboxylic acids and its acid chlorides with different amines affodred amide derivatives of coumarin in moderate to high yields
