Journal
RSC ADVANCES
Volume 6, Issue 76, Pages 72698-72702Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra11415f
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Funding
- National Natural Science Foundation of China [51373069]
- Natural Science Foundation of Shandong Province [ZR2013BM005, ZR2015BL011]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars [20121707]
- Colleges and Universities Science and Technology Foundation of Shandong Province [J16LA08]
- Fund of Graduate Innovation Foundation of University of Jinan, GIFUJN [S1504]
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Two novel 3-hydroxyflavone derivatives were synthesized by a one-step simple condensation, cyclization and subsequent oxidation reaction catalyzed by pyrrolidine, which shows great convenience compared with the traditional method. The compounds can recognize cyanide anions at very low concentration with remarkable spectral shift and an obvious color change from yellow to colorless. The bonding mechanism analysis via NMR experiments and mass spectra indicates that cyanide anions induce the deprotonation of the compounds.
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