On the mechanism of reaction of tert-butoxyl radicals with dialkylphosphites
β Scribed by G. Brunton; K. U. Ingold
- Book ID
- 102531270
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 191 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
Abstract
It has been shown by ESR spectroscopy that the title reaction involves abstraction of hydrogen from the phosphite, since at β10Β°C the reaction has a kinetic deuterium isotope effect, k~H~/k~D~, or βΌ3. The rate constant for hydrogen abstraction is c. 2 Γ 10^4^ M^β1^ s^β1^. There is no significant addition of alkoxyl radicals to the phosphite.
π SIMILAR VOLUMES
Photolytically generated tert-butoxyl radicals react with vinyl-and propenyl ethers by hydrogen abstraction and addition to the double bond; the abstraction/addition ratio and the regioselectivity of addition are interpreted in terms of predominant steric interactions.