74178-19-1Relevant articles and documents
NITRATION OF SOME POLYALKYL-3,5-DICYANO-1,4-DIHYDROPYRIDINES AND FRAGMENTATION OF THEIR PRODUCTS BY ELECTRON IMPACT
Kurfurst, Antonin,Raclova, Frantiska,Kuthan, Josef
, p. 397 - 405 (2007/10/02)
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.