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Kinetic applications of electron paramagnetic resonance spectroscopy. 41. Diethoxyphosphonyl radicals

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1021/ja00349a037
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectSPECTROSCOPY, ELECTRON; SPECTROSCOPIC ANALYSIS
Abstract
Rate constants for the abstraction of halogen atoms by diethoxyphosphonyl radicals from some organic halides have been determined by EPR spectroscopy using competitive methods. Some typical rate constants (M -1 s -1 units) at ambient temperatures in di-tert-butyl peroxide/diethyl phosphite (4:1, v/v) as solvent follow: tert-butyl chloride, 3.5 × 10 2; n-butyl bromide, 1.0 × 10 4; tert-butyl bromide, 3.0 × 10 5; benzyl bromide, 1.2 × 10 6. Diethoxyphosphonyl radicals are less reactive in halogen atom abstractions than triethylsilyl or tri-n-butyltin radicals.
Publication date
In
  • Journal of the American Chemical Society 105, no. 11 (1983): 3580–3583.
LanguageEnglish
Peer reviewedYes
NPARC number21276559
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