Artículos de revistas
Synergistic Effect Of Iron And Copper Oxides Supported On Silica In The Room Temperature Oxidation Of Cyclohexane
Registration in:
Applied Catalysis A, General. , v. 131, n. 1, p. 135 - 141, 1995.
0926860X
10.1016/0926-860X(95)00132-8
2-s2.0-0005149688
Author
Schuchardt U.
Pereira R.
Krahembuhl C.E.Z.
Rufo M.
Buffon R.
Institutions
Abstract
The room temperature oxidation of cyclohexane with oxygen/zinc (GifIV system), catalysed by iron oxide supported on silica, has been studied. It was found that after calcination the iron catalyst does not leach and is very active for oxidation. Using 4 mmol of iron chloride per 0.1 g of silica, cyclohexanone and cyclohexanol (2:1 ratio) were obtained with a turnover number of 425. Substitution of half of the iron used for impregnation by copper chloride increased the turnover number to 885, without changing the product ratio. As copper chloride alone is not active for this reaction, it exhibits a synergistic effect on the iron(III) heterogenized on the silica. © 1995 Elsevier Science B.V. All rights reserved. 131 1 135 141 Barton, Doller, (1992) Acc. Chem. Res., 25, p. 504 Schuchardt, Mano, (1990) Stud. Surf. Sci. Catal., 55, pp. 185-194 Schuchardt, Krähembühl, Carvalho, (1991) New J. Chem., 15, p. 955 Ingold, (1989) Aldrichim. Acta, 22, p. 69 Schuchardt, Krähembühl, Carvalho, (1994) Stud. Surf. Sci. Catal., 82, pp. 647-652 Barton, Csuhai, Doller, Geletii, (1991) Tetrahedron, 47, p. 6561 Schuchardt, Carvalho, Pereira, Spinacé, (1993) The Activation of Dioxygen and Homogeneous Catalytic Oxidation, pp. 243-255. , D.H.R. Barton, A.E. Martell, D.T. Sawyer, Plenum Press, New York Pereira, Schuchardt, Proceedings of the 7th Brazilian Seminar on Catalysis (1993) Proceedings of the 7th Brazilian Seminar on Catalysis, pp. 135-143. , IBP-CAT, Rio de Janeiro Pereira, Rufo, Schuchardt, Copper(II) Catalyzed Oxidation of Cyclohexane by tert-Butyl Hydroperoxide (1994) Journal Of The Brazilian Chemical Society, 5, p. 83 Lee, Kim, Jun, Shim, (1993) New J. Chem., 17, p. 409 Santos, Schuchardt, (1995) J. Braz. Chem. Soc., 6. , in press Schuchardt, Spinacé, Mano, (1991) Stud. Surf. Sci. Catal., 66, pp. 47-54 Barton, Boivin, Gastiger, Morzycki, Hay-Motherwell, Motherwell, Ozbalik, Schwartzentruber, J. Chem. Soc. (1986) J. Chem. Soc., p. 947. , Perkin Trans. 1 Sheldon, Kochi, (1981) Metal-Catalysed Oxidations of Organic Compounds, p. 250. , 2nd ed., Accademic Press, New York Schuchardt, Carvalho, Spinacé, Why is it Interesting to Study Cyclohexane Oxidation? (1993) Synlett, p. 713 Sheldon, Kochi, (1981) Metal-Catalysed Oxidations of Organic Compounds, p. 242. , 2nd ed., Accademic Press, New York