Abstract
RuO2 nanoparticles were readily prepared from RuCl3·3H2O via the formation of Ru-hydroxide precursor, followed by calcination at 550 °C. Under similar conditions, uniform dispersion of spherical RuO2 nanoparticles over the surface of MCM-41 was also obtained. The synthesized materials were characterized by transmission electron microscopy (TEM), infrared spectroscopy (FT-IR), X-ray diffraction (XRD), BET surface area measurements, and magnetic measurements (VSM). The obtained RuO2 nanoparticles found application as catalyst in preparation of indolo[3,2-a]carbazoles from the reaction of indoles and benzils. Under mild reaction conditions, satisfactory yields of the desired products were obtained. Stabilization of RuO2 nanoparticles over the surface of MCM-41 (RuO2–MCM41), however, had the advantage of easy recycling, although a slight decrease in efficiency after five successive runs was observed.
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References
H. Kase, K. Iwahashi, and Y. Matsuda (1986). J. Antibiot. 39, 1059.
H. Kase, K. Iwahashi, S. Nakanishi, Y. Matsuda, K. Yamada, M. Takahashi, C. Murakata, A. Sato, and M. Kaneko (1987). Biochem. Biophys. Res. Commun. 142, 436.
D. Chakraborty and S. Roy Progress in the chemistry of organic natural products (Springer, Vienna, 1991), p. 71.
R. Lygaitis, J. V. Grazulevicius, V. Gaidelis, V. Jankauskas, J. Sidaravicius, Z. Tokarski, and N. Jubran (2005). Mol. Cryst. Liq. Crys. 427, 95–407.
A. P. Kulkarni, C. J. Tonzola, A. Babel, and S. A. Jenekhe (2004). Chem. Mater. 16, 4556.
C. Winder and N. S. Sariciftci (2004). J. Mat. Chem. 14, 1077.
T. Janosik, N. Wahlström, and J. Bergman (2008). Tetrahedron 64, 9159.
M. N. Tomlinson (1951). J. Chem. Soc.
V. Nair, V. Nandialath, K. G. Abhilash, and E. Suresh (2008). Org. Biomol. Chem. 6, 1738.
A. Khorshidi (2012). Ultrason. Sonochem. 19, 570.
A. Khorshidi and K. Tabatabaeian (2011). J. Mol. Catal. A 344, 128.
A. Khorshidi (2012). Chin. Chem. Lett. 23, 903.
L. M. Rossi, J. Dupont, G. Machado, P. F. Fichtner, C. Radtke, I. J. Baumvol, and S. R. Teixeira (2004). J. Brazil. Chem. Soc. 15, 901.
X. Ni, B. Zhang, C. Li, M. Pang, D. Su, C. T. Williams, and C. Liang (2012). Catal. Commun. 24, 65.
M. Jahjah, Y. Kihn, E. Teuma, and M. Gómez (2010). J. Mol. Catal. A 332, 106.
A. P. Kumar, M.-W. Baek, C. Sridhar, B. P. Kumar, and Y.-I. Lee (2014). Bull. Korean Chem. Soc. 35, 1144.
A. A. Romero, M. D. Alba, and J. Klinowski (1998). J. Phys. Chem. B 102, 123.
A. Mondal, S. Rana, and C. Mukhopadhyay (2014). Tetrahedron Lett. 55, 3498.
N. Wahlström and J. Bergman (2004). Tetrahedron Lett. 45, 7273.
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The authors are grateful to the Research Council of Guilan University for partial support of this study.
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Khorshidi, A., Sadeghi, N. Application of RuO2 Nanoparticles as Catalyst in Preparation of Indolo[3,2-a]Carbazoles. J Clust Sci 27, 1923–1932 (2016). https://doi.org/10.1007/s10876-016-1052-5
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DOI: https://doi.org/10.1007/s10876-016-1052-5