Electron transfer in the photochemistry of substituted benzoate and naphthoate esters
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 13,p. 1475-1479
- https://doi.org/10.1039/p29760001475
Abstract
Substituted alkyl esters of aromatic carboxylic acids (ArCO2CH2CH2X) undergo photochemical cleavage to give the carboxylic acid. If X is a dialkylamino- or methylthio-group, the reaction is relatively efficient (ϕ up to ca. 0.25), and this is attributed to the operation of an electron-transfer mechanism. Excited state lifetime measurements provide strong support for such a mechanism; in particular the singlet lifetime is at least six times shorter for esters containing the dialkylamino-group.Keywords
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