Gaur, Hardew Angad, Hageman, Hendrik J., Oosterhoff, Pieter, Overeem, Ton, Verbeek, Jan, van der Werf, Sake (1998) Photoinitiators and photoinitiation - Part 13. The photodecomposition of sulphonic esters of alpha-hydroxymethylbenzoin ethers. Journal of Photochemistry and Photobiology a-Chemistry, 112 (1). pp. 87-93. ISSN 1010-6030. (doi:10.1016/S1010-6030(97)00255-4) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:17759)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://dx.doi.org/10.1016/S1010-6030(97)00255-4 |
Abstract
The photodecomposition of some sulphonic esters of alpha-hydroxymethylbenzoin ethers is examined using ESR and radical trapping techniques. Photoinduced alpha-cleavage into benzoyl and alpha-alkoxy-alpha-sulphonyloxymethylbenzyl radicals from a short-lived triplet excited state is observed. The alpha,alpha-disubstituted benzyl radicals undergo subsequent fragmentation, generating benzoylmethylradicals and sulphonic acids at a rate k(el) < 10(7) s(-1). The fate of the alkyl ether part of the alpha,alpha-disubstituted benzyl radicals after elimination of sulphonic acid is unknown at present.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1016/S1010-6030(97)00255-4 |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | R.F. Xu |
| Date Deposited: | 26 Oct 2009 19:46 UTC |
| Last Modified: | 16 Nov 2021 09:55 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/17759 (The current URI for this page, for reference purposes) |
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