Structure and photochemistry of matrix-isolated o-phthalaldehyde
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 5,p. 765-769
- https://doi.org/10.1039/p29900000765
Abstract
Two conformers, (EZ) and (EE), were observed in o-phthalaldehyde (1) isolated in nitrogen and argon matrices. The E-enol (5E) generated upon photolysis (λ 313 nm) of the matrix-isolated (1) was stabilized and characterized by UV and IR absorption spectroscopy. Further irradiation of (5E) resulted in intramolecular cyclization (λ > 357 nm) to phthalide (2) or fragmentation (λ= 313 nm) to carbon monoxide and benzaldehyde (7).Keywords
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