Electrosynthesis of 2‐Arylpropionic Acids from α‐Methylbenzyl Chlorides and Carbon Dioxide by [Co(Salen)]
作者:J. Damodar、S. Krishna Mohan、S. K. Khaja Lateef、S. Jayarama Reddy
DOI:10.1081/scc-200054748
日期:2005.5
The electrochemical synthesis of the 2-arylpropionic acid group of nonsteroidal anti-inflammatory agents such as ibuprofen, naproxen, indoprofen, biprofen, cicloprofen, and fenoprofen has been carried out in dimethylformamide (DMF) containing tetra-n-butylammonium perchlorate (nBu(4)NClO(4)) by electrochemical carboxylation of alpha-methylbenzyl chlorides catalyzed by a schiff-base complex [Co(salen)] in an undivided cell equipped with a platinum cathode and magnesium anode under constant current density of 10 mA/cm(2) in good yields. Cyclic voltammetric studies have also been carried out to investigate the mechanism by which [Co(salen)] catalyzes the cathodic reaction of a-methylbenzyl chlorides in presence Of CO2 by taking alpha-phenylethylchloride as the model compound.