TY - JOUR
T1 - Electrochemical oxidation of caffeic and ferulic acid derivatives in aprotic medium
AU - Salas-Reyes, Magali
AU - Hernández, Javier
AU - Domínguez, Zaira
AU - González, Felipe J.
AU - Astudillo, Pablo D.
AU - Navarro, Rosa Elena
AU - Martínez-Benavidez, Evelin
AU - Velázquez-Contreras, Carlos
AU - Cruz-Sánchez, Samuel
PY - 2011
Y1 - 2011
N2 - We studied the electrochemical behaviour as a function of the structure of a series of caffeic and ferulic acids derivatives as well as their corresponding redox moieties catechol and guaiacol by cyclic voltammetry. Results revealed that the medium is key for changes in the oxidation mechanism of guaiacol and ferulic acid. Electrochemical oxidation of the ferulic acid amide derivatives revealed that the nitrogen atom plays an important role in the derivatization of the electrode surface. In addition, radical scavenging activity of the compounds evaluated through the percentage of inhibition of the 2,2'-diphenyl-1-picrylhidrazyl radical showed a good relationship with the oxidation potentials.
AB - We studied the electrochemical behaviour as a function of the structure of a series of caffeic and ferulic acids derivatives as well as their corresponding redox moieties catechol and guaiacol by cyclic voltammetry. Results revealed that the medium is key for changes in the oxidation mechanism of guaiacol and ferulic acid. Electrochemical oxidation of the ferulic acid amide derivatives revealed that the nitrogen atom plays an important role in the derivatization of the electrode surface. In addition, radical scavenging activity of the compounds evaluated through the percentage of inhibition of the 2,2'-diphenyl-1-picrylhidrazyl radical showed a good relationship with the oxidation potentials.
KW - Antioxidant activity
KW - Caffeic acid phenethyl ester
KW - Cyclic voltammetry
KW - DPPH radical
KW - Hydroxycinnamic acids
UR - http://www.scopus.com/inward/record.url?scp=79953293985&partnerID=8YFLogxK
U2 - 10.1590/S0103-50532011000400012
DO - 10.1590/S0103-50532011000400012
M3 - Artículo
SN - 0103-5053
VL - 22
SP - 693
EP - 701
JO - Journal of the Brazilian Chemical Society
JF - Journal of the Brazilian Chemical Society
IS - 4
ER -