Add time:07/20/2019 Source:sciencedirect.com
Cyclic voltammetry and controlled-potential electrolysis have been employed to investigate the direct and cobalt(I) salen-catalyzed reduction of 2,6-bis(chloromethyl)pyridine at carbon cathodes in acetonitrile containing tetramethylammonium tetrafluoroborate. A cyclic voltammogram for direct reduction of 2,6-bis(chloromethyl)pyridine indicates that the starting material undergoes stepwise cleavage of carbonchlorine bonds. Cyclic voltammograms for reduction of cobalt(II) salen in the presence of excess 2,6-bis(chloromethyl)pyridine exhibit three waves: (a) a prewave attributed to formation of cobalt(I) salen and its follow-up reaction with 2,6-bis(chloromethyl)pyridine to give, most likely, a 2,6-bis[(salen)cobalt(III)methyl]pyridine complex; (b) a large catalytic wave which involves reduction of the complex; and (c) another wave due to direct reduction of 2,6-bis(chloromethyl)pyridine. Controlled-potential electrolyses of 2,6-bis(chloromethyl)pyridine produce 2,6-lutidine, 3-(6-methylpyridin-2-yl)propionitrile, and bis(6-methyl-2-pyridylmethyl) ether. For the cobalt(II) salen–2,6-bis(chloromethyl)pyridine system, electrolyses at potentials corresponding to the second voltammetric peak give the same products in similar yields as for the direct reduction. Mechanisms for both the direct and catalytic reduction of 2,6-bis(chloromethyl)pyridine are proposed.
We also recommend Trading Suppliers and Manufacturers of 5-CHLORO-2-(CHLOROMETHYL)PYRIDINE (cas 10177-24-9). Pls Click Website Link as below: cas 10177-24-9 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View