Imidazo[1,2-a]pyridine

A mild, catalytic, atom economical synthesis of imidazo[1,2-a]pyridines has been developed: catalytic PicAuCl2 in the presence of an acid produces a range imidazo[1,2-a]pyridines in good yield.

Yellow to Brown Oil

Imidazo[1,2-a]pyridine is one of four imidazopyridine isomers. Imidazopyridine derivatives possess activity as inhibitors of target enzymes and have medicinal and pharmaceutical applications and are used as herbicides and fungicides.

In vivo anti-trypanosomal activity of imidazo[1,2-a]pyridiness in the STIB900 mouse model has been investigated.

1-Azaindolizine is purified by distillation or gas chromatography. [Bower & Ramage J Chem Soc 4506 1957, Armarego J Chem Soc 4226 1964, Beilstein 23 II 1554, 23 III/IV 1104.]