Electrocarboxylation of Acetophenone to 2-Hydroxy-2-phenylpropionic Acid in the Presence of CO2

Autor: Li-Ping Xiao, LU Jiaxing, Yi-Wen Luo, Li Zhang, Dongfang Niu
Rok vydání: 2008
Předmět:
Zdroj: Chinese Journal of Chemistry. 26:35-38
ISSN: 1614-7065
1001-604X
DOI: 10.1002/cjoc.200890034
Popis: Electrocarboxylation of acetophenone with CO2 to obtain 2-hydroxy-2-phenylpropionic acid was carried out in acetonitrile solution containing 0.1 mol·L−1 tetraethylammonium bromide. Influences of the nature of the electrodes, the working potential, the passed charge and the concentration of acetophenone on the electrocarboxylation were studied. After optimizing the synthetic parameters, the maximal isolated yield reached 73.0% on Mg-stainless steel couple electrodes under potentiostatic electrolysis until 2.2 F·mol−1 of charge was passed at 25 °C. The reduction of acetophenone was studied by cyclic voltammetry and the mechanism has been proposed on the basis of the results.
Databáze: OpenAIRE