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.
Original language | English (US) |
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Pages (from-to) | 7675-7678 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 32 |
Issue number | 52 |
DOIs | |
State | Published - Dec 23 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry