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Synthesis and fluorescence properties of 3-coumarinyl carboxylates

Author Affiliations

  • 1Laboratoire de Chimie Moleculaire et de Materiaux (LCMM), Equipe deChimie Organique et de Phytochimie, Universite Ouaga I Pr Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
  • 2Laboratoire de Photochimie et d'Analyse, Université Cheikh Anta DIOP, Dakar, Sénégal
  • 3Laboratoire de Chimie Moleculaire et de Materiaux (LCMM), Equipe deChimie Organique et de Phytochimie, Universite Ouaga I Pr Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso

Res.J.chem.sci., Volume 8, Issue (8), Pages 16-19, August,18 (2018)

Abstract

3-Coumarinyl Carboxylates were synthesized from 3-hydroxycoumarin by O-acylation with acid chlorides or acid anhydrides in the presence of an appropriated base. The fluorescence spectra of these compounds were recorded in acetonitrile. Except the compounds 2g With R=(CH3)2N) as substituent which exhibits an unstructured broad spectrum at a long wavelength (λem=488nm; ∆λ=177nm), all compounds emit in the same chromatic range (300nm < λem < 400nm). This compounds exhibited high fluorescent intensities that vary according to the electronic nature of the different substitutes.

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