title: 6-Bromo-1,3-di-2-propynyl-1H-imidazo[4,5-b]pyridin-2(3H)-one.
abstract: The room-temperature reaction of propargyl bromide and 6-bromo-1,3-dihydro-imidazo[4,5-b]pyridin-2-one in dimethyl-formamide yields the title compound, C(12)H(8)BrN(3)O, which features nitro-gen-bound propynyl substituents. The imidazopyridine fused ring is almost planar (r.m.s. deviation = 0.011 Å); the propynyl chains point in opposite directions relative to the fused ring. One acetyl-enic H atom is hydrogen bonded to the carbonyl O atom of an inversion-related mol-ecule, forming a dimer; adjacent dimers are linked by a second acetyl-ene-pyridine C-H⋯N inter-action, forming a layer motif.
authors.forename: S
authors.initials: S
authors.lastname: Dahmani
authors.forename: A
authors.initials: A
authors.lastname: Haoudi
authors.forename: F
authors.initials: F
authors.lastname: Capet
authors.forename: El Mokhtar
authors.initials: el M
authors.lastname: Essassi
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng