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- W1590491128 abstract "Abstract 4′-Tolyl-2-methylsulfono-thio-benzoate (1) undergoes a new type of photorearrangement to give 2-methyl-thiaxanthone (4). The isomeric 3-methylsulfono-thio-benzoate (2) suffers cleavage of the S-benzoyl bond, giving rise to the corresponding thiyl and benzoyl radicals. The resulting radicals form bis-4′-tolyl disulfide (5) by dimerization and 3-methylsulfono-benzaldehyde (6) by hydrogen abstraction respectively. No thia-photo-Fries products are formed by the photolysis of 1 and 2. In contrast to 1 4′-tolyl-2-methylsulfono-benzoate (3) displays the normal photo-Fries reaction and affords the benzophenone derivative 8. A mechanism for the photorearrangement of thiol ester 1 into thiaxanthone derivative 4 is discussed." @default.
- W1590491128 created "2016-06-24" @default.
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- W1590491128 date "1974-01-01" @default.
- W1590491128 modified "2023-10-02" @default.
- W1590491128 title "Organische schwefelverbindungen—VI" @default.
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- W1590491128 doi "https://doi.org/10.1016/s0040-4020(01)97133-9" @default.
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