Nitration of 2,3-dihydroimidazo[1,2-a]benzimidazole and its N 9-substituted derivatives

Vadim S. Sochnev,Tatyana A. Kuz'Menko,Anatolii S. Morkovnik,Lyudmila N. Divaeva,Anastasia S. Podobina,Alexander A. Zubenko, Pavel B. Chepurnoy,Gennadii S. Borodkin,Alexander Klimenko

Mendeleev Communications（2021）

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Abstract

7-Nitro-2,3-dihydroimidazo[1,2-a]benzimidazole and its N9-substituted derivatives can be conveniently synthesized by nitration of the corresponding tricyclic precursors with a nitrating mixture or with the HNO3 /CF3COOH system. This reaction occurs fairly smoothly and with good regioselectivity.

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Key words

7-nitro-2,3-dihydroimidazo[1,2-a]benzimidazoles,imidazo[1,2-a]benzimidazoles,nitration,15N NMR,quantum chemical calculations,anti-infective activity

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