Y. Kita, H. Maekawa, Y. Yamasaki
Dec 3, 1999
Citations
0
Influential Citations
10
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Electroreduction of pyridinedicarboxylic acid derivatives in methanol using a divided cell brought about highly selective hydrogenation to give efficiently the corresponding dihydropyridines in good yields. From the electrolysis of dimethyl 2,3- and 2,5-pyridinedicarboxylates, 1,2-dihydropyridine derivatives were obtained while that of 2,6-, 3,4- and 2,4-disubstituted pyridines afforded the corresponding 1,4-dihydropyridines selectively in good yields.