Heterocyclic Communications p. 305 - 310 (2007)
Update date:2022-08-29
Topics:
Rostamizadeh, Shahnaz
Nojavan, Masoomeh
Heshmatpoor
Benzimidazoles 3a-f have been prepared in a few seconds from the reaction of ophenylene-diamine 1 and β-ketoesters 2 on the surface of silica gel and ZnCl2 under microwave irradiation in excellent yield. The reaction has also gone very well in MeOH and in the presence of ZnCl2 under reflux condition.
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