Thorough screening confirms the potential of the now easily available 3-(pyridin-2-yl)imidazo[1,5-a]pyridine (Py-indz) ligand in the preparation of complexes with transition and main-group metallic centers in very different environments.

3-(Pyridin-2-yl)imidazo[1,5-a]pyridine (Pyridylindolizine) as Ligand in Complexes of Transition and Main-Group Metals
Celedonio M. Álvarez, Lucía Álvarez-Miguel, Raúl García-Rodríguez, José M. Martín-Álvarez and Daniel Miguel.
Eur. J. Inorg. Chem., 2015, 4921-4934. DOI: 10.1002/ejic.201500776

Grafico paper1



The condensation of two pyridine-2-carboxaldehyde molecules and one ammonium cation produces 3-(pyridyne-2-yl)imidazo[1,5-a]-pyridine ligands which have the indolizine ring:

Complexes with 3-(pyridyne-2-yl)imidazo[1,5-a]-pyridine ligands by spontaneous dimerization of pyridine-2-carboxaldehyde within the coordination sphere of manganese(II) in a one-pot reaction.
Celedonio M. Álvarez, Lucía Álvarez-Miguel, Raúl García-Rodríguez and Daniel Miguel.
Dalton Trans., 2012,41,7041-7046. DOI: 10.1039/C2DT30453H

INDZ figure TOC