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    An experimental and computational study on the rate constant of electrochemically generated N-acetyl-p- quinoneimine with dimethylamine

    , Article International Journal of Electrochemical Science ; Volume 3, Issue 10 , 2008 , Pages 1092-1107 ; 14523981 (ISSN) Shafiei, H ; Haqgu, M ; Nematollahi, D ; Gholami, R. M ; Sharif University of Technology
    2008
    Abstract
    Electrochemical oxidation of acetaminophen (N-acetyl-p-aminophenol) (1) has been studied in the presence of dimethylamine (2) as a nucleophile in aqueous solution, by means of cyclic voltammetry and controlled-potential coulometry. The results indicate the participation of electrochemically generated N-acetyl-p-quinoneimine (1a) in Michael reaction with dimethylamine (2). Based on ECE mechanism, the observed homogeneous rate constant (kobs) of the above mentioned reaction is estimated by comparing the experimental cyclic voltammograms with the digital simulated results. Further more; kinetics and mechanism of the reaction were studied with ab initio calculation, Monte Carlo and QM/MM... 

    Solid state oxidation of phenols to quinones with ammonium persulfate/wet SiO2

    , Article Journal of Chemical Research ; Issue 3 , 2005 , Pages 160-161 ; 03082342 (ISSN) Hashemi, M. M ; Karimi Jaberi, Z ; Eftekhari Sis, B ; Sharif University of Technology
    Scientific Reviews Ltd  2005
    Abstract
    A solid state method for the oxidation of phenols to quinones is described using ammonium persulfate/wet silica gel as oxidant