SYNTHESIS OF SOME NEW SUBSTITUTED IMIDAZO(1,2-a)PYRIDINES AND THEIR 2-ONE DERIVATIVES
Abstract
2,3-diaminopyridine (11) (a tri-nitrogen nucleophile)
undergoes regioselective cyclocondensation reaction with nitrilimines (2,10)
affording 8-aminoimidazo[1,2-a]pyridines (12) and 8-aminoimidazo[1,2-
a]pyridine-2- ones (13), respectively. The structures of the new compounds
(12,13) were deduced from their IR, MS and NMR spectral data.
undergoes regioselective cyclocondensation reaction with nitrilimines (2,10)
affording 8-aminoimidazo[1,2-a]pyridines (12) and 8-aminoimidazo[1,2-
a]pyridine-2- ones (13), respectively. The structures of the new compounds
(12,13) were deduced from their IR, MS and NMR spectral data.
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