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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42670Generated: October 28, 2026

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

https://huagongshe.com/reaction/42670

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 numberUS08536203B2
Source datasetuspto-grants-2013_09
ORD IDord-e37ea56ca5574a2bafaf368875ccb062
Source noteuspto-grants-2013_09