Synthesis of Imidazo[1,2-a] annulated Pyridines, Pyrazines and Pyrimidines by a Novel Three-Component Condensation

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Abstract
A novel three-component, one-pot condensation yielding 3-amino-substituted imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrazines and imidazo[1,2-a]pyrimidines from aldehydes, isonitriles and 2-amino-pyridine, 2-amino-pyrazine or 2-amino-pyrimidine is described.