Ramamurthy, V. ; Lei, Xue-Gong ; Turro, Nicholas J. ; Lewis, Thillairaj J. ; Scheffer, John R. (1991) Photochemistry of macrocyclic ketones within zeolites: competition between Norrish type I and type II reactivity Tetrahedron Letters, 32 (52). pp. 7675-7678. ISSN 0040-4039
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0040-4039(91)80562-K
Abstract
Photolysis of macrocyclic mono- and diketones (1 and 2) included in X and Y zeolites gives Norrish type I products in addition to the products obtained via the Norrish type II process, the only observed process in isotropic media. Enhancement of the type I over the type II process is cation-dependent and especially large enhancements are obtained with Li and Na as cations. The zeolite effect is attributed to a reduction in the rate of the Norrish type II α-hydrogen abstraction process.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 89991 |
| Deposited On: | 04 May 2012 05:17 |
| Last Modified: | 04 May 2012 05:17 |
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