Journal of Heterocyclic Chemistry p. 1725 - 1728 (1988)
Update date:2022-08-03
Topics:
Rida
Soliman
Badawey
Kappe
The synthesis of some 3-substituted and 2,3-disubstituted-1-oxo-1H,5-H-pyrido[1,2-a]benzimidazole-4-carbonitr les 5,6 by fusing 1H-benzimidazole-2-acetonitrile 1 with some β-keto esters 2,4 in the presence of ammonium acetate or with ethyl β-aminocrotonat
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