V. Anisimova, I. E. Tolpygin, G. Borodkin
Nov 22, 2013
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Journal
Chemistry of Heterocyclic Compounds
Abstract
The reaction of 2-R1-9-R2-imidazo[1,2-a]benzimidazoles with propiolic acid in polyphosphoric acid yields substituted 3-(9H-imidazo[1,2-a]benzimidazol-3-yl)acrylic acids. Their esterification reaction has been studied for the preparation of potentially biologically active compounds.