Abstract
The oxidation of o-phenanthroline with potassium permanganate gives 2,2′-dipyridyl-5,5′-dicarboxylic acid (I). The corresponding esters of I were obtained by esterification with methanol, ethanol, propyl alcohol, isopropyl alcohol, butyl alcohol, and benzyl alcohol.
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See [10] for communication XI.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1644–1646, December, 1972.