Aluminium and titanium modified mesoporous TUD-1: A bimetal acid catalyst for Biginelli reaction

Aluminium and titanium modified mesoporous TUD-1: A bimetal acid catalyst for Biginelli reaction Using a simple, non-surfactant template triethanolamine (TEA), bimetal (Al3+ and Ti4+ ions) incorporated mesoporous catalyst AlTiTUD-1 (Si/Al+Ti = 50) was synthesized. The catalyst was characterized by XRD (Low and High angle), N2 Sorption, FTIR, SEM, TEM, DR UV Visible, and pyridine adsorbed FT-IR techniques. The XRD and N2 sorption studies confirmed its amorphous, mesoporous nature, which possessed a BET surface area of 590 m2 g−1 and pore diameter of 4.4 nm. The Al3+ and Ti4+ co-ordination within the TUD-1 was evaluated by DR UV–Vis. Pyridine adsorbed FTIR revealed both Bronsted (B) and Lewis (L) acidity, which is responsible for the catalytic activity. The acid catalyst showed a good catalytic performance in Biginelli type multicomponent coupling reaction for the substituted aldehydes, ethyl acetoacetate and thiourea to yield about 70% in reflux condition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Molecular Structure Elsevier

Aluminium and titanium modified mesoporous TUD-1: A bimetal acid catalyst for Biginelli reaction

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier B.V.
ISSN
0022-2860
eISSN
1872-8014
D.O.I.
10.1016/j.molstruc.2018.02.009
Publisher site
See Article on Publisher Site

Abstract

Using a simple, non-surfactant template triethanolamine (TEA), bimetal (Al3+ and Ti4+ ions) incorporated mesoporous catalyst AlTiTUD-1 (Si/Al+Ti = 50) was synthesized. The catalyst was characterized by XRD (Low and High angle), N2 Sorption, FTIR, SEM, TEM, DR UV Visible, and pyridine adsorbed FT-IR techniques. The XRD and N2 sorption studies confirmed its amorphous, mesoporous nature, which possessed a BET surface area of 590 m2 g−1 and pore diameter of 4.4 nm. The Al3+ and Ti4+ co-ordination within the TUD-1 was evaluated by DR UV–Vis. Pyridine adsorbed FTIR revealed both Bronsted (B) and Lewis (L) acidity, which is responsible for the catalytic activity. The acid catalyst showed a good catalytic performance in Biginelli type multicomponent coupling reaction for the substituted aldehydes, ethyl acetoacetate and thiourea to yield about 70% in reflux condition.

Journal

Journal of Molecular StructureElsevier

Published: May 15, 2018

References

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