Next Article in Journal
Functional Analysis of the Drosophila Dnop5 Using Targeted RNA Interference
Next Article in Special Issue
Hydrolysis and Partial Recycling of a Chloroaluminate Ionic Liquid
Previous Article in Journal
Introducing Spectral Structure Activity Relationship (S-SAR) Analysis. Application to Ecotoxicology
Previous Article in Special Issue
Sulfonium-based Ionic Liquids Incorporating the Allyl Functionality
Article

Organo-niobate Ionic Liquids: Synthesis, Characterization and Application as Acid Catalyst in Pechmann Reactions

Instituto de Quimica, Universidade de Brasilia, CP 4478, 70910-970, Brasilia, Brazil
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2007, 8(5), 392-398; https://doi.org/10.3390/i8050392
Received: 27 March 2007 / Accepted: 5 May 2007 / Published: 11 May 2007
(This article belongs to the Special Issue Ionic Liquids)
The combinations of 1-butyl-3-methylimidazolium chloride with NbCl5 yieldedionic mixtures with different melting point temperatures and acidity depending on theniobium molar fraction. The mixtures were characterized by thermal (DSC) andspectroscopic (FT-IR and 1H NMR) analysis. The Pechmann reactions of different phenolswith ethylacetoacetate, producing coumarins, was used as model to evaluate the catalyticbehavior of these mixtures as acid Lewis catalyst. These reactions were carried out usingacidic mixtures of 60 mol%. View Full-Text
Keywords: ionic liquids; niobium pentachloride; Pechmann reaction ionic liquids; niobium pentachloride; Pechmann reaction
Show Figures

MDPI and ACS Style

Soares, V.C.D.; Alves, M.B.; Souza, E.R.; Pinto, I.O.; Rubim, J.C.; Andrade, C.K.Z.; Suarez, P.A.Z. Organo-niobate Ionic Liquids: Synthesis, Characterization and Application as Acid Catalyst in Pechmann Reactions. Int. J. Mol. Sci. 2007, 8, 392-398. https://doi.org/10.3390/i8050392

AMA Style

Soares VCD, Alves MB, Souza ER, Pinto IO, Rubim JC, Andrade CKZ, Suarez PAZ. Organo-niobate Ionic Liquids: Synthesis, Characterization and Application as Acid Catalyst in Pechmann Reactions. International Journal of Molecular Sciences. 2007; 8(5):392-398. https://doi.org/10.3390/i8050392

Chicago/Turabian Style

Soares, Valerio C.D., Melquizedeque B. Alves, Ernesto R. Souza, Ivana O. Pinto, Joel C. Rubim, Carlos K.Z. Andrade, and Paulo A.Z. Suarez. 2007. "Organo-niobate Ionic Liquids: Synthesis, Characterization and Application as Acid Catalyst in Pechmann Reactions" International Journal of Molecular Sciences 8, no. 5: 392-398. https://doi.org/10.3390/i8050392

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop