Abstract
Electrocatalyzed reduction of organic halides with ethylenebis(salicylideneiminato)cobalt (CoSalen) in THF/HMPT ( 40 60 ) at 25°C is studied. The kinetics of formation and cleavage of CoC bonds is analyzed by cyclic voltammetry at a gold electrode of CoSalen in the presence of RX (RX = n-C 4H 9Br, n-C 7H 15Cl, C 6H 5CH 2Cl, C 6H 5CHCHCH 2Cl, CH 3CHCHCH 2Cl, C 6H 5I C 6H 5CHCHBr). Quantitative reductions at controlled potential on a mercury pool are performed with RCl or RBr or with mixtures of halides RX + R′X in the presence of CoSalen. The yield of the products obtained is determined and the conditions for CC bond formation by homocoupling (RR formation) or heterocoupling (RR′ formation) are optimized.
Published Version
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