Triazolopyridines. Part 24: New polynitrogenated potential helicating ligands

The synthesis of novel 7-{1,2,3]triazolo1,5-a]pyridin-3-yl}-1,2,3]triazolo1,5-a]pyridines 7, 2-pyridyl-1,2,3]triazolo1,5-a]pyrid-7-ylmethanols 11, 3-(6-substituted-2-pyridyl)-1,2,3]triazolo1,5-a]pyridines 12, and 7,7′-disubstituted-3,3′-1,2,3]triazolo1,5-a]pyridine 20, interesting polynitrogenated ligands as potential helicating compounds or luminescent sensors, from 1,2,3]triazolo1,5-a]pyridines is described.