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TitleSynthesis of 2,6-bis-(oxazolyl)pyridine ligands for luminescent Ln(III) complexes
Author(s)Pereira, Goreti
Ferreira, Paula M. T.
Castanheira, Elisabete M. S.
Martins, José A.
Ferreira, Miguel Filipe Moreira Marques
KeywordsDehydroaminobutyric acid
Dipicolinic acid
Ln(III) complexes
Issue date18-Jun-2012
JournalEuropean Journal of Organic Chemistry
Abstract(s)New bis-(oxazolyl)pyridine ligands for Ln(III) ions were prepared using a expeditious methodology from threonine and dipicolinic acid chloride. The synthetic strategy includes a dehydration step to give a bis-dehydroaminobutyric acid derivative followed by bromination and cyclization with DBU. Photophysical studies of Eu(III) and Tb(III) complexes of these ligands showed that the 2,6-bis-(oxazolyl)pyridine moiety acts as an effective sensitizer for lanthanide luminescence and indicate the formation of 3:1 complexes [Ln-(bis-(oxazole)pyridine)3]3+.
DescriptionSubmitted to the European Journal of Organic Chemistry
Publisher version
AccessOpen access
Appears in Collections:CDF - FAMO - Artigos/Papers (with refereeing)
CDQuim - Artigos (Papers)

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