A one-pot synthesis of substituted pyrido[2,3-b]indolizines |
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Authors: | Fernanda Proença Marta Costa |
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Institution: | Department of Chemistry, University of Minho, Campos de Gualtar 4710-057 Braga, Portugal |
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Abstract: | An efficient and novel approach to the synthesis of substituted pyrido2,3-b]indolizine-10-carbonitriles was developed. These structures are practically unavailable through previously described methods. The cascade transformation involves the reaction of α,β-unsaturated carbonyl compounds with a stable dimer prepared from 1-(cyanomethyl)pyridinium chloride. The reaction was performed under reflux conditions in ethanol/water and in the presence of sodium acetate. This procedure represents a eco-friendly regioselective approach to the pyrido2,3-b]indolizine core structure. |
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Keywords: | 1-(Cyanomethyl)pyridinium chloride Acetylacetone α β-unsaturated carbonyl compounds Pyrido[2 3-b]indolizine One-pot synthesis |
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