5
40
SONYANAIK et al.
filtered. The solvent of the filtrate (H O) was removed
Central Facilities for Research and Development,
Osmania University for providing NMR facilities.
2
under reduced pressure. The reaction mixture was
washed with ethanol and diethyl ether (2×30 mL) and
dried. Upon addition of acetone, the mixture was
stirred and refluxed for 4 min. Then, the mixture of a
product and the catalyst was centrifuged for separation
of the catalyst from the product.
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CONCLUSIONS
In summary, we have developed a mild and efficient
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approach to the synthesis of 2,4,5-trisubstituted
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aromatic aldehydes and ammonium acetate using the
ionic liquid APVPB as a catalyst, and supported by
MWI under solvent-free conditions. This method has
distinctive advantages such as clean reaction profile,
short reaction time, high yields, simple workup
procedures, and reusability of the catalyst.
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ACKNOWLEDGMENTS
Shinde, D.B., J. Chem. Sci., 2008, vol. 120, p. 463. doi
1
0.1007/s12039-008-0072-6
We gratefully acknowledge the Head of the
Department of Chemistry, Osmania University, for
providing research facilities. One of the authors
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and Rvai, D., Russ. J. Gen. Chem., 2016, vol. 86,
no. 12, p. 2737. doi 10.1134/S1070363216120343
4. Moosavi-Zarea, A.R., Zolfigolb, M.A., Noroozizadehb, E.,
Zareib, M., Karamianc, R., and Asadbegyc, M., J. Mol.
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(
B. Sonyanaik) thanks the University Grant Commission,
New Delhi, India, for providing senior research
fellowship. Finally, the authors wish to express their
gratitude to Central facilities research and development
RUSSIAN JOURNAL OF GENERAL CHEMISTRY Vol. 88 No. 3 2018