Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Produção e Tecnologia Vegetal >
PTV - Posters em Encontros Científicos Nacionais >

Please use this identifier to cite or link to this item:

Título: Structure determination of some oxygen and nitrogen heterocyclic compounds by NMR
Autor: Seixas, Raquel
Esteves, Cátia
Brito, Cristela
Leal, Stephanie
Pinto, Diana
Santos, Clementina M.M.
Seca, Ana
Silva, Artur
Cavaleiro, José
Issue Date: 2012
Citação: Seixas, Raquel; Esteves, Cátia; Brito, Cristela; Leal, Stephanie; Pinto, Diana; Santos, Clementina M.M.; Seca, Ana, Silva, Artur; Cavaleiro, José (2012) - Structure determination of some oxygen and nitrogen heterocyclic compounds by NMR. In 2nd PTNMR meeting - NMR in Portugal: an overview. Lisboa
Resumo: Oxygen heterocyclic compounds are widely distributed in Nature, being chromone and xanthone derivatives some examples. For instance, the xanthone ring system is a structural motif prevalent in higher plants such as those of Guttiferae and Gentianaceae families.1 Both natural and synthetic derivatives often endowed with interesting pharmacological properties, such as anti-inflammatory,2 antitumour3 and antioxidant activities.4 Chromones and chromone derivatives play an important role in the normal human diet, due to their significant anti-inflammatory,5 anti-cancer,6 and antioxidant activities.5 Nitrogen heterocyclic compounds are also widely distributed in Nature, being 4-quinolones a large group that can be found, mainly, in plants of the Rutaceae family.7 However, a great number of the well-known derivatives are of synthetic origin and have been designed to be used as drugs, mainly for the treatment of tuberculosis.8 In view of these important properties, we have dedicated our investigation in the establishment of new synthetic methods for these types of compounds9 and also for the assessment of their biological properties.10 Naturally, we devote special attention to the structural characterization, mainly by NMR experiments, not only to confirm the product structure but also to unequivocally establish their stereochemistry. The aim of this communication is to report some of our studies on the structural characterization of heterocyclic compounds by NMR spectroscopy.
Arbitragem científica: yes
Appears in Collections:PTV - Posters em Encontros Científicos Nacionais

Files in This Item:

File Description SizeFormat
2012 2PTNMR Meeting.pdf2,94 MBAdobe PDFView/Open

Please give feedback about this item
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


© Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia