نوع مقاله : مقاله علمی پژوهشی
نویسندگان
1 دانشگاه بوعلی سینا، مجتمع آموزش عالی نهاوند(ویژه دختران)
2 دانشگاه بوعلی سینا، دانشکده شیمی، همدان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this research, the electrochemical oxidation of 4-amino phenol (1) was studied by cyclic voltammetry and controlled potential coulometryin in the absence and presence of 2-mercaptobenzimidazole (3a), 2-mercapto-5-methyl benzimidazole (3b) and 2-mercapto-5-metoxy benzimidazole (3c) in aqueous/ethanol (70/30 v/v) mixture.The results revealed that p-quinone(2) derived from oxidation of 4-amino phenol (1) participate in Michaeladdition reactions with 3a-c via EC mechanism. To confirm the proposed mechanism, the electrochemical synthesis of 4-amino phenol (1) was performed in the presence of 2-mercapto benzimidazoles (3a-c), and the obtained products were identified by 1HNMR, FTIR and Mass spectroscopy. In this study, we synthesized a variety of products with good efficiency using controlled potential electrochemical oxidation at a surface of graphite electrode.
کلیدواژهها [English]