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Citation: Kuang Ya-Fei, Li Guo-Xi, Huang Shu-Kun, Lu Dao-Hui, Chen De-Wen. An ESR Study of Radical Intermediates in Electroreduction of Propargyl Alcohol[J]. Acta Physico-Chimica Sinica, ;1997, 13(10): 954-956. doi: 10.3866/PKU.WHXB19971019 shu

An ESR Study of Radical Intermediates in Electroreduction of Propargyl Alcohol

1.
College of Chemistry and Chemical Engineering,Hunan University,Changsha 410082

Received Date: 21 January 1997
Available Online: 15 October 1997

Electrochemical-ESR technique (ex situ method) with spin traps phenyl tert-butyl nitrone (PBN) and 5,5-dimethyl-1-Pyrroline-1-oxide (DMPO) has been applied to the detection of radical intermediates produced during electroreduction of propargyl alcohol (PA) at platinized platinum electrode in an acidified alcohol-aqua solution. Propargyl radical and H have been detected by PBN and DMPO, respectively. As a result of the discovery of these radicals, an evidence for a radical mechanism of the electroreduction of PA put forward by some authors might be obtained beyond all doubt.
- Propargyl alcohol,
- Electroreduction,
- Electrochemical-ESR,
- Spin trapping
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