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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62015Generated: October 29, 2026

Hydrochloric Acid → 3-(2H-tetrazol-5-yl)-2-(trifluoromethyl)pyridine

https://huagongshe.com/reaction/62015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium AzideHCID 33557—
Reactant2-(Trifluoromethyl)pyridine-3-carbonitrileHCID 26986387—
SolventDimethylformamideHCID 6228—
Product3-(2H-tetrazol-5-yl)-2-(trifluoromethyl)pyridineHCID 68704491—

Reaction Conditions

Temperature85 °C

Reaction Steps

A mixture of 2-(trifluoromethyl)nicotinonitrile (0.43 g, 2.50 mmol), sodium azide (0.24 g, 3.75 mmol), and ammonium chloride (0.20 g, 3.75 mmol) in dimethylformamide (2.5 mL) was stirred at 85° C. for 20 hours. After cooling to room temperature, the reaction mixture was poured onto water (20 mL) and acidified with dilute hydrochloric acid. The resulting precipitate was collected, washed with water and dried to yield 3-(2H-tetrazol-5-yl)-2-(trifluoromethyl)pyridine, 0.484 g (90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09446012B2
Source datasetuspto-grants-2016_09
ORD IDord-7bdffca34e2d4750a24299441ea112f8
Source noteuspto-grants-2016_09