Hydrochloric Acid → 3-(1-(2,3-difluorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine

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Reaction Steps

Crude N-tert-butyl-3-(1-(2,3-difluorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine was dissolved in MeOH (10 mL), treated with 6N HCl (20 mL), and heated to reflux for 2 hours. The mixture was subsequently cooled to RT and neutralized with 6N NaOH. The resulting precipitate was collected, washed with water, and dried in vacuo to give 3-(1-(2,3-difluorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine as white solid. Using the same procedure, 3-(1-(2,3-dichlorophenyl)-H-tetrazol-5-yl)pyridin-2-amine and 3-(1-(3-chloro-2-fluorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine can be produced from N-tert-butyl-3-(1-(2,3-dichlorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine and N-tert-butyl-3-(1-(3-chloro-2-fluorophenyl)-1H-tetrazol-5-yl)pyridin-2-amine, respectively.

Provenance & Evidence