Photodegradation of the lignin model α-guaiacoxyacetoveratrone, unusual effects of solvent, oxygen, and singlet state participation

DOI	Resolve DOI: https://doi.org/10.1139/v91-016
Author	Search for: Schmidt, John A.; Search for: Berinstain, Alain B.; Search for: de Rege, Francis; Search for: Heitner, Cyril; Search for: Johnston, Linda J.¹; Search for: Scaiano, J. C.¹
Affiliation	National Research Council of Canada
Format	Text, Article
Abstract	α-Guaiacoxyacetoveratrone, a lignin model compound, has been studied using a combination of laser flash photolysis and steady state quantum yields. Triplet lifetimes range from 175 to 600 ns while the quantum yields of photodegradation vary from 0.06 to 0.6, depending on the solvent. Singlet processes (Φ ~ 0.1), previously unobserved for aromatic ketones, are implicated in the mechanism, and account for most or all of the degradation in aprotic solvents. Key words: photodegradation, α-guaiacoxyacetoveratrone.
Publication date	1991
In	Canadian Journal of Chemistry 69, no. 1 (1991): 104–107.
Note	The authors were affiliated with NRC Division of Chemistry at time of publication
Language	English
NPARC number	12338475
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Record identifier	df0d7341-c748-431e-9df7-f000a7fe70a0
Record created	2009-09-10
Record modified	2020-03-17