1,2-dihydro-1,2,4,3-triazaphospholo[4,5-a]quinolines as electron carriers in the electrochemical reduction of 1,1-dichloro-2-methoxycarbonyl-2-methylcyclopropane |
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Authors: | V V Yanilkin B I Buzykin R M Eliseenkova N I Maksimyuk N V Nastapova |
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Institution: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center of the Russian Academy of Sciences, 8 ul. Akad. Arbuzova, 420088 Kazan, Russian Federation |
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Abstract: | Electrochemical reduction of 1-X-1-R1-5-methyl-2-phenyl-7-R2-1,2-dihydro-1,2,4,3-tri-azaphospholo4,5-a]quinolines1–5 (1: X is the lone electron pair (LEP), R1=Et2N, R2=Me;2: X=LEP, R1=Ph, R2=H;3: X=S, R1=Et2N, R2=H;4: X=LEP, R1=Et2N, R2=H;5: X=LEP, R1=MeO, R2=H) in DMF with 0.1M Bu4NI as supporting electrolyte is reversible and results in metastable radical anions. Radical anions of compounds1–3 efficiently reduce 1,2-dichloro-2-methoxycarbonyl-2-methylcyclopropane both in the presence and in absence of Ni11 ions. Effective reduction rate constants have been evaluated.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2088–2091, November, 1999. |
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Keywords: | electrochemistry mediator reduction kinetics 8n π -heterocycles 1 2 4 3-triazaphospholo[4 5-a]quinolines gem-dichlorocyclopropane |
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