Answers are grounded in this paper and cite their sources.
N-Alkylation of (E)-2-[2-(4-pyridyl)vinyl]-1H-benzimidazole (10), obtained by two different approaches, affords the title salts 4-6, deprotonation of which results in the new (E)-1-alkyl-4-[2-(benzimidazolyl-2-idene)ethylidene]-1, 4-dihydropyridines (7 and 8) with a betaine character. Their biological properties have also been examined.
No takes yet. Share an insight, caveat, or question.
Alcalde et al. (1993) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: