Startseite Facile and efficient synthesis of xanthenedione derivatives promoted by niobium pentachloride
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Facile and efficient synthesis of xanthenedione derivatives promoted by niobium pentachloride

  • Willian H. dos Santos und Luiz C. Da Silva-Filho EMAIL logo
Veröffentlicht/Copyright: 28. September 2016
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Chemical Papers
Aus der Zeitschrift Chemical Papers Band 70 Heft 12

Abstract

Xanthenedione derivatives were synthesised in one-pot reactions between arylaldehyde derivatives and 1, 3-cyclohexanedione promoted by niobium pentachloride. This new method is simple, cost-effective, high-yielding with a good variety of substrates generality, and can be conducted within reasonable reaction times.

Keywords: niobium pentachloride; Lewis acid; xanthenedione derivatives; one-pot reactions

Acknowledgements

The authors would like to thank Fundação de Amparo á Pesquisa do Estado de São Paulo (FAPESP), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenadoria de Aperfeiçoamento de Pessoal do Nível Superior (CAPES), and Pró-Reitoria de Pesquisa da UNESP (PROPe-UNESP) for their financial support. The authors would also like to thank CBMM – Companhia Brasileira de Metalurgia e Mineração for the NbCl5 samples. The authors would also like to express their special thanks to N. B. Dias and M. S. Palma from the São Paulo State University in Rio Claro for their HR-MS analyses, and to Bannach, G., Guerra, R. B., Ferreira, L. T. and Alarcon, R. T. for their DSC analyses.

Supplementary data

Supplementary data associated with this article can be found in the online version of this paper (DOI: 10.1515/chempap-2016-0098).

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Received: 2016-1-5
Revised: 2016-5-5
Accepted: 2016-5-16
Published Online: 2016-9-28
Published in Print: 2016-12-1

© 2016 Institute of Chemistry, Slovak Academy of Sciences

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https://doi.org/10.1515/chempap-2016-0098
Schlagwörter für diesen Artikel
niobium pentachloride; Lewis acid; xanthenedione derivatives; one-pot reactions

Artikel in diesem Heft

  1. Review
  2. Sulphur and peroxide vulcanisation of rubber compounds – overview
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  4. Isolation of sporopollenin-like biopolymer from Aspergillus niger and its characterisation
  5. Original paper
  6. Clustering analysis of different hop varieties according to their essential oil composition measured by GC/MS
  7. Original paper
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  9. Original paper
  10. Enhancing lithium–sulphur battery performance by copper oxide@graphene oxide nanocomposite-modified cathode
  11. Original paper
  12. Magnetic properties of binary and ternary mixed metal oxides NiFe2O4 and Zn0.5Ni0.5Fe2O4 doped with rare earths by sol—gel synthesis
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  15. Original paper
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  17. Original paper
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  19. Original paper
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