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

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DOIResolve DOI: http://doi.org/10.1021/ja00349a037
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TypeArticle
Journal titleJournal of the American Chemical Society
ISSN0002-7863
Volume105
Issue11
Pages35803583; # of pages: 4
SubjectSPECTROSCOPY, ELECTRON; SPECTROSCOPIC ANALYSIS
AbstractRate 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
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21276559
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Record identifier0ec623be-bc4c-45c7-868c-a771a9e9de08
Record created2015-10-13
Record modified2016-05-09
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