Abstract:
:Electrochemical oxidation of catechols in the presence of phenyl-Meldrum's acid as a nucleophile in aqueous solution has been studied in detail by means of cyclic voltammetry and controlled potential coulometry. The results indicate that the o-benzoquinone derived from catechols participates in Michael addition reaction with phenyl-Meldrum's acid to form corresponding products. We derived some new "highly oxygenated compounds with catechol ring" with good yields based on electrochemical oxidation in the controlled potential condition in aqueous solutions, without toxic reagents and solvents at carbon electrode in an undivided cell, using an environmentally friendly method. Furthermore, the observed homogeneous rate constants (k(obs)) of the chemical reaction between o-benzoquinone and phenyl-Meldrum's acid were estimated by comparing the experimental cyclic voltammetric curves with the digitally simulated ones.
journal_name
Chem Pharm Bull (Tokyo)journal_title
Chemical & pharmaceutical bulletinauthors
Nematollahi D,Bamzadeh M,Shayani-Jam Hdoi
10.1248/cpb.58.23subject
Has Abstractpub_date
2010-01-01 00:00:00pages
23-6issue
1eissn
0009-2363issn
1347-5223pii
JST.JSTAGE/cpb/58.23journal_volume
58pub_type
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