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

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DOIResolve DOI: http://doi.org/10.1139/v91-016
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TypeArticle
Journal titleCanadian Journal of Chemistry
Volume69
Issue1
Pages104107; # of pages: 4
Abstractα-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
LanguageEnglish
AffiliationNational Research Council Canada
NoteThe authors were affiliated with NRC Division of Chemistry at time of publication
Peer reviewedNo
NPARC number12338475
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Record identifierdf0d7341-c748-431e-9df7-f000a7fe70a0
Record created2009-09-10
Record modified2016-05-09
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