Regioselective Synthesis of 3-Aminoimidazo[1,2-a]pyrimidines with Triflic Anhydride
2017
The regioselective synthesis of 3-aminoimidazo[1,2- a ]pyrimidines via triflic anhydride mediated amide activation and intramolecular cyclisation is reported. The nature of the added pyridine base allows access to both regioisomers from a simple common precursor. The method tolerates a range of functional groups and provides access to novel heterocyclic scaffolds.
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