Citation: Isa. Hafiz et al., Utility of 3-aminocrotononitrile in the synthesis of new methyl 1,4-dihydropyridine, methylquinoline and thiophene derivatives: Reactivity of the methyl function in alkyl 1,4-dihydropyridine and methyl quinoline derivatives towards some electrophilic reagents, J CHEM R-S, (9), 1999, pp. 536-537A