Photolysis of the title compound (1) in benzene gives benzaldehyde, diphenylsulphide and biphenyl; these are formed from cu fission of the excited triplet state of 1 which yields benzoyl and thiyl radicals. The aryl substituent has a significant influence on the efficiency of photocleavage. The benz
Photolysis of s-phenyl thiobenzoates in various media
โ Scribed by Jing-Jing Su; Guang-Song Dai; Shi-Kang Wu
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 416 KB
- Volume
- 83
- Category
- Article
- ISSN
- 1010-6030
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โฆ Synopsis
The photolysis of two s-phenyl thiobenzoates containing different substituent groups was investigated in benzene solution and on thin-layer chromatography plates (silica). The photolytic products include benzaldehyde, thiophenol, diphenyldisulphide, diphenylsulphide, 1-l'-biphenyl and two photo-Fries rearrangement products, oriho-mecaptobenzoylbenzene and para-mercaptobenzoylbenzene.
The results indicate that the distribution of the photolytic products strongly depends on the medium. Cage effects and external magnetic field effects are discussed. The photolytic reaction of s-phenyl thiobenzoates proceeds through the excited triplet state.
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