The reaction of t-butoxyl radicals with diborane
Abstract
The reaction of butoxyl radicals with diborane has been shown by e.s.r. spectroscopy to yield t-butyl radicals. The rate constant for this process is given by k= 108·4× 102·9/θ l mol–1 s–1 where θ= 2·303 RT in kcal mol–1. No intermediate 4-co-ordinate boron radical could be detected. Analogies are drawn with t-butoxyl–trialkyl phosphite reaction and with the oxidation of trialkylboranes by alkaline hydrogen peroxide and by amine oxides. t-Butyl radicals are not formed in detectable quantities in either the t-butoxyl–alkyldiborane or in the t-butoxyl–phosphine reactions.
Please wait while we load your content...
