Rate constants for some electrophilic reactions of benzyl, benzhydryl, and trityl cations in solution
β Scribed by Sujdak, Richard J.; Jones, R. Lorin; Dorfman, Leon M.
- Book ID
- 127376121
- Publisher
- American Chemical Society
- Year
- 1976
- Tongue
- English
- Weight
- 617 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
## Abstract The rate constant for the bimolecular combination of benzyl radicals in cyclohexane and toluene is determined as a function of temperature. Further, it is studied in cyclohexaneβtoluene mixtures of different compositions. In the entire range covered, 9.8 Γ 10^8^ β©½ 2__k__~t~ β©½ 9.0 Γ 10^9
The kinetics of the acqueous-phase reactions of the free radicals .OH, .Cl,, and SO; . with the halogenated acetates, CHzFCOO-, CHF2COO-, CF3COO-, and with CHzClC00-, CHClzC00-, CC13COOwere investigated. Generally, the reactivity decreases with increasing halogen substitution and is in the order k(.
Laser flash photolysis (at 248 or 308 nm) or aryl iodides in water or water/methanol solutions produces iodine atoms and phenyl radicals. Iodine atoms react rapidly with added I-to form 12-but do not react rapidly with 0 2 ( k I lo7 L mol-l s-l). Iodine atoms oxidize phenols to phenoxyl radicals, wi