Synthesis of furanochromones: A new step in improvement of fluorescence properties

Andrey S. Klymchenko*, Turan Ozturk, Alexander P. Demchenko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

New 3-hydroxychromone derivatives with a fused furan heterocycle (2-aryl-3-hydroxyfurano[3,2-g]chromones) have been synthesized. This was achieved by an important improvement in the synthetic procedure. Like their parent analogs, these new compounds exhibit two intensive fluorescence emission bands belonging to normal (N*) and tautomer (T*) excited-state forms. While the spectral position of the N* band remains unchanged, the T* band is shifted to longer wavelengths, providing larger separation between the two bands. The new compounds exhibit increased molecular extinction and, more importantly, have about twice as high fluorescence quantum yields. These properties make them very promising for designing new two-band fluorescence sensors.

Original languageEnglish
Pages (from-to)7079-7082
Number of pages4
JournalTetrahedron Letters
Volume43
Issue number39
DOIs
Publication statusPublished - 23 Sept 2002
Externally publishedYes

Funding

We thank TUBITAK Marmara Research Center (Turkey) for providing financial support.

FundersFunder number
TUBITAK Marmara Research Center

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