Collect. Czech. Chem. Commun. 1980, 45, 397-405

Nitration of some polyalkyl-3,5-dicyano-1,4-dihydropyridines and fragmentation of their products by electron impact

Antonín Kurfürst, Františka Raclová and Josef Kuthan

Department of Organic Chemistry, Institute of Chemical Technology, 166 10 Prague 6


Dihydropyridines I-IV on treatment with nitric acid in acetic acid or acetic anhydride undergo nitration at the 2- or 6-methyl groups. Mass spectra of the products V-XI are interpreted and mechanism of the studied transformations is discussed.