Imidazo[1,2]hetarylglyoxylates: Synthesis and Reactivity Toward Nucleophiles
Synthesis(2010)
Abstract
A practical approach to imidazo[1,2]hetarylglyoxylates via Friedel-Crafts acylation of the parent fused imidazoles with ethyl oxalyl chloride is reported. The reaction is strongly influenced by the electron-donating properties of the starting heterocycle. The generated imidazo[1,2] hetarylglyoxylates undergo standard transformations typical of alpha-keto esters upon reaction with various nucleophiles. All the products contain an imidazoheterocyclic scaffold which is considered a privileged structure for drug discovery.
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Key words
imidazoheterocycles,acylation,glyoxylates,privileged scaffolds
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