On the mechanism of reaction of  tert ‐butoxyl radicals with dialkylphosphites | Zendy

Brunton G. | Zendy; Ingold K. U. | Zendy

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On the mechanism of reaction of tert ‐butoxyl radicals with dialkylphosphites

Author(s) -

Brunton G.,

Ingold K. U.

Publication year - 1975

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270071014

Subject(s) - radical , hydrogen atom abstraction , deuterium , chemistry , kinetic isotope effect , photochemistry , reaction rate constant , hydrogen , reaction mechanism , alkoxy group , spectroscopy , kinetics , organic chemistry , catalysis , alkyl , physics , quantum mechanics

It has been shown by ESR spectroscopy that the title reaction involves abstraction of hydrogen from the phosphite, since at −10°C the reaction has a kinetic deuterium isotope effect, k H /k D , or ∼3. The rate constant for hydrogen abstraction is c . 2 × 10 4 M −1 s −1 . There is no significant addition of alkoxyl radicals to the phosphite.

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