Photoinduced Reactions. XXXIV. Photosensitized Oxygenation of 2,4,5-Triphenylthiazole
- 1 October 1969
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 42 (10) , 2973-2975
- https://doi.org/10.1246/bcsj.42.2973
Abstract
In connection with the photodynamic action of the biological systems, photosensitized oxygenation of a thiazole was investigated. Photooxidation of 2,4,5-triphenylthiazole in methanol in the presence of rose bengal resulted in the formation of benzil and benzamide. On the other hand, photooxidation of 2,4,5-triphenylthiazole in chloroform containing methylene blue as a sensitizer gave N,N-dibenzoylthiobenzamide in good yield. Possible mechanisms for these reactions, involving an endo-peroxide or a zwitterionic peroxide, are discussed.Keywords
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