Sol - Gel Derived Hybrid Materials As Heterogeneous Catalysts For The Epoxidation Of Olefins

CH3ReO3 has been heterogenized inside the porous system of hybrid silica matrixes via the sol-gel method using 1,4-bis(triethoxysilyl)benzene as a co-condensation agent and 4-((3-triethoxysilyl)propylamino)pyridine hydrochloride as a hydrolysable ligand. The resulting solids are stable and recyclable epoxidation catalysts. © 2000 Elsevier Science B.V. All rights reserved.101/04/15913Herrmann, W.A., Fischer, R.W., Marz, D.W., (1991) Angew. Chem. Int. Ed., 30, p. 1638Herrmann, W.A., Wagner, W., Kuchler, J.G., Weichselbaumer, G., Fischer, R.W., (1992), US Pat. 5 155,247Zhu, Z., Espenson, J.H., (1997) J. Mol. Catal. A, 121, p. 139Neumann, R., Wang, T.-J., (1997) Chem. Commun., p. 1915Wang, T.-J., Li, D.-C., Bai, J.-H., Huang, M.-Y., Jiang, Y.-Y., (1998) J.M.S. - Pure Appl. Chem. A, 35, p. 531Owens, G.S., Abu-Omar, M.M., (2000) Chem. Commun., p. 1165Blum, J., Avnir, D., Schumann, H., (1999) Chemtech, 29, p. 32Lindner, E., Schneller, T., Auer, F., Mayer, H.A., (1999) Angew. Chem. Int. Ed., 38, p. 2155Herrmann, W.A., Weichselbaumer, G., Herdtweck, E., (1989) J. Organomet. Chem., 372, p. 371Loy, D.A., Jamison, G.M., Baugher, B.M., Myers, S.A., Assink, R.A., Shea, K.J., (1996) Chem. Mater., 8, p. 656Herrmann, W.A., Kratzer, R.M., Fischer, R.W., (1997) Angew. Chem. Int. Ed., 36, p. 2652Williams, D.H., Fleming, I., (1975) Spektroskopische Methoden zur Strukturaufklärung, , Thieme Verlag, StuttgartOviatt Jr., H.W., Shea, K.J., Small, J.H., (1993) Chem. Mater., 5, p. 943Sheldon, R.A., Wallau, M., Arends, I.W.E.C., Schuchardt, U., (1998) Acc. Chem. Res., 31, p. 485Herrmann, W.A., Fischer, R.W., Rauch, M.U., Scherer, W., (1994) J. Mol. Catal., 86, p. 24