Karandikar, P. ; Agashe, M. ; Vijayamohanan, K. ; Chandwadkar, A. J. (2004) Cu2+-perchlorophthalocyanine immobilized MCM-41: catalyst for oxidation of alkenes Applied Catalysis A: General, 257 (2). pp. 133-143. ISSN 0926-860X
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.apcata.2003.07.007
Abstract
The immobilization of copperperchlorophthalocyanine (CuCl16Pc) complex in the channels of HSi-MCM-41 molecular sieves has been carried out by (i) post-synthesis in the presence of 3-aminopropyltriethoxysilane (3-APTES) and (ii) impregnation in the absence of 3-APTES. The resulting host-guest samples were characterized by XRD, MAS-NMR, nitrogen adsorption, IR and cyclic voltammetry. Each sample showed an IR band at 1390 cm−1 suggesting the presence of CuCl16Pc complex in the channels of HSi-MCM-41. The results of the alkene epoxidation in presence of (i) TBHP and (ii) O2/isobutyraldehyde are compared. The oxo-metal and acyl peroxy radical species that formed predominantly using isobutyraldehyde give a high yield of epoxide, as compared to the reaction using TBHP as the oxidant.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | HSi-MCM-41; Cu-AM(PS); Immobilization Of Cucl16Pc Complexes; Alkene Oxidation |
| ID Code: | 53287 |
| Deposited On: | 05 Aug 2011 11:17 |
| Last Modified: | 05 Aug 2011 11:17 |
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