Reaction of imidazolones with acylacetylenes
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By interacting benzimidazol-2-one with benzoyl- and thenoylacetylenes in acetonitrile in the presence of triethylamine, the N,N-diadducts are obtained. Under similar conditions 4,5-diphenylimidazol-2-one forms both the N-mono- and N,N-diadducts.
The sulfur analogs of the imidazolones react with a twofold excess of benzoylacetylene to form the N,S-diadducts.
KeywordsSulfur Acetonitrile Similar Condition Triethylamine Benzoyl
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