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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 729460Generated: October 30, 2026

Ammonium Chloride → 1-[5-(1H-Tetrazol-5-yl)pyrimidin-2-yl]piperidin-4-ol

https://huagongshe.com/reaction/729460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium AzideHCID 33557—
Reactant2-(4-Hydroxypiperidin-1-yl)pyrimidine-5-carbonitrileHCID 68821252—
SolventDimethylformamideHCID 6228—
SolventSodium HydroxideHCID 14798—
Product1-[5-(1H-Tetrazol-5-yl)pyrimidin-2-yl]piperidin-4-olHCID 178516462—

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 2-(4-hydroxypiperidin-1-yl)pyrimidine-5-carbonitrile (2 g, 9.79 mmol), sodium azide (0.955 g, 14.69 mmol) and ammonium chloride (1.048 g, 19.59 mmol) in DMF (24.48 mL) was heated at 130° C. for 1 h. The mixture was cooled to RT, diluted with 1N NaOH (5 mL), washed Et2O (2×10) mL. The aqueous layer was acidified to pH about 1 with 2 N HCl and placed in the refrigerator for 1 h. The solid was filtered and washed with water followed by Et2O. The solid was dried under high vacuum to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582633B2
Source datasetuspto-grants-2009_09
ORD IDord-d176f3303c2444acbd8ed0bf47698248
Source noteuspto-grants-2009_09