“…18 As mentioned, in spite of extensive developments in the preparation of two or three component condensation of imidazo[1,2-a]-pyridines, little attention has been paid to four component condensation of imidazo[1,2-a]pyridines. 19 However, to the best of our knowledge, no report has been published for the preparation imidazo[1,2-a]pyridines via one pot four component condensation of two 2-aminopyridine molecules with aldehydes and phenacyl bromide. In continuation of our previous works on the MCRs, [20][21][22][23] we wish to report an efficient and simple synthesis of new imidazo-[1,2-a]pyridines 4 in high yield via a one pot, four-component reaction of 2-aminopyridines 1, benzaldehydes 2 and phenacyl bromides 3 in the presence of DABCO using the in situ generation of corresponding imine intermediates (Scheme 1 and Table 1).…”