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Liquid phase bromination of phenols over silicotungstic acid immobilized on nickel oxide nanoparticles | ||
| Iranian chemical communication | ||
| مقاله 45، دوره 5، Issue 1, pp. 1-120, Serial No. 14، فروردین 2017، صفحه 99-104 اصل مقاله (127.97 K) | ||
| نوع مقاله: Original Research Article | ||
| نویسندگان | ||
| Abbas Mirzaie* 1؛ Ahmad Afzalinia2؛ Tahereh Musabeygi2 | ||
| 1College of Chemistry, Shahrood University, P.O. Box 36155-316, Shahrood, Iran | ||
| 2Department of Chemistry, Payame Noor University, P.O. BOX 7815753613, Tehran, Iran | ||
| چکیده | ||
| Heteropoly acid promoted nanoparticle of nickel oxide samples were prepared by sol-gel method using heteropoly acids. Prepared composite was characterized by XRD, FT-IR and ICP technique. In this work, we have reported bromination of phenol, its derivatives and some aromatic compounds. The liquid phase bromination of phenol was Performed using heteropoly acids immobilized nanoparticle of nickel oxide as catalyst, KBr as brominating agent and hydrogen peroxide as an oxidant in acetonitrile at room temperature. The reaction proceeds through the formation of Br+ (bromonium ion), which attacks the phenol ring forming different brominated products. Prepared catalyst can be used several times without a significant decline in catalytic activity. | ||
| کلیدواژهها | ||
| Silicotungstic acid؛ bromination؛ phenol؛ sol-gel | ||
| مراجع | ||
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[1] L. Kumar, T. Mahajan, D.D. Agarwal, Green Chemistry, 2011, 13, 2187-2196.
[2] S.C. Roy, C. Guin, K.K. Rana, G. Maiti, Tetrahedron Letters, 2001, 42, 6941-6942.
[3] S.T. Wong, C.C. Hwang, C.Y. Mou, Applied Catalysis B: Environmental, 2006, 63, 1-8.
[4] K. Kikushima, T. Moriuchi, T. Hirao, Tetrahedron Letters, 2010, 51, 340-342.
[5] K.K. Mohan, N. Narender, P. Srinivasu, S. J. Kulkarni, K.V. Raghavan, Synthetic Communications, 2004, 34, 2143-2152.
[6] D. Prakasini Das, K. Parida, Catalysis Communications, 2006, 7, 68–72.
[7] I.V. Kozhevnikov, Chemical Reviews, 1998, 98(1), 171-198.
[8] M. Misono, Comptes Rendus de l'Académie des Sciences-Series IIC-Chemistry, 2000, 3(6), 471-475.
[9] M. Mu, W. Fang, Y. Liu, L. Chen, Industrial & Engineering Chemistry Research, 2015, 54, 8893-8899.
[10] A.D. Newman, A.F. Lee, K. Wilson, N. A. Young, Catalysis letters, 2005, 102, 45-50.
[11] P. Ferreira, I.M. Fonseca, A.M. Ramos, J. Vital, J. E. Castanheiro, Catalysis Communications, 2011, 12, 573-576.
[12] A. Engin, H. Haluk, K. Gurkan, Green Chemistry, 2003, 5, 460-466.
[13] R.M. Ladera, J.L.G. Fierro, M. Ojeda, S. Rojas, Journal of Catalysis, 2014, 312, 195-203.
[14] I.V. Kozhevnikov, K.R. Kloetstra, A. Sinnema, H. W. Zandbergen, H. Van Bekkum, Journal of Molecular Catalysis A: Chemical, 1996, 114, 287-298.
[15] K.M. Parida, S. Mallick, Journal of Molecular Catalysis A: Chemical, 2007, 275, 77-83.
[16] L. Pizzio, P. Vázquez, C. Cáceres, M. Blanco, Catalysis letters, 2001, 77, 233-239.
[17] V.V. Bokade, G.D. Yadav, Industrial & Engineering Chemistry Research, 2009, 48(21), 9408-9415.
[18] R. Fazaeli, H. Aliyan, Applied Catalysis A: General, 2007, 331, 78-83.
[19] J. Wang, H.O. Zhu, Catalysis letters, 2004, 93, 209-212.
[20] A.N. Kharat, S. Moosavikia, B.T. Jahromi, A. Badiei, Journal of Molecular Catalysis A: Chemical, 2011, 348, 14-19. | ||
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