Reactions of 2-aminobenzimidazoles with propiolic esters and diethyl ethoxymethylenemalonate
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1588-1590
- https://doi.org/10.1039/p19730001588
Abstract
The major products of the propiolate reactions are pyrimido[1,2-a]benzimidazol-2-ones and those of the malonate reactions are pyrimido[1,2-a]benzimidazol-4-ones. The 1H n.m.r., i.r., and u.v. spectra of the products are discussed.Keywords
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