E.s.r. evidence for the formation of new vinyl radicals in solution
Abstract
The new vinyl radicals HC(SO3–)ĊCMe2OH, HC(SO3–)ĊCH2OH, and HC(SO3–)ĊCH(Me)OH were observed during the reactions of the SO3– radical with the corresponding alkynes 3-methylbut-1-yn-3-ol, prop-2-ynyl alcohol, and but-1-yn-3-ol, respectively, by use of an e.s.r. method coupled with a rapid-mixing flow technique which allows the detection of radicals having life-times of 5–100 ms.