Synthesis of substituted imidazopyridines from perfluorinated pyridine derivatives
A Poorfreidoni, R Ranjbar-Karimi - Tetrahedron Letters, 2016 - Elsevier
Phenylsulfonyl tetrafluoropyridine was reacted with various N-aryl amidines to give the
corresponding imidazopyridine systems via an intramolecular nucleophilic aromatic
substitution process whilst pentafluoropyridine gave N′-(perfluoropyridin-4-yl)-N-
phenylbenzimidamide and 2, 3, 5, 6-tetrafluoro-N-phenylpyridin-4-amine by a competing
elimination reaction.
corresponding imidazopyridine systems via an intramolecular nucleophilic aromatic
substitution process whilst pentafluoropyridine gave N′-(perfluoropyridin-4-yl)-N-
phenylbenzimidamide and 2, 3, 5, 6-tetrafluoro-N-phenylpyridin-4-amine by a competing
elimination reaction.
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