| abstract |
Process for the preparation of imidazopyridines corresponding to formula (I) in which Y represents a hydrogen or halogen atom or an alkyl radical, X₁ and X₂ are each, hydrogen, halogen, alkoxy, alkyl, the group CF₃, CH₃S, CH₃SO₂ or NO₂ and R₁ and R₂ each represent either a hydrogen or an alkyl radical according to which an imidazopyridine is reacted with a dialkoxyacetal compound, then the compound thus obtained is reacted with thionyl chloride, then the chlorinated compound is reduced. |