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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648447Generated: October 29, 2026

Hydrochloric Acid → HCID 178518665, compound

https://huagongshe.com/reaction/648447

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium AzideHCID 33557—
Reactant2-Oxo-1,2-dihydro-1,8-naphthyridine-3-carbonitrileHCID 11344253—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178518665HCID 178518665—

Reaction Conditions

Temperature120 °C

Reaction Steps

A solution was prepared by heating 6.0 parts of 3-cyano-2(1H)naphthyridinone in 150 ml of dimethylformamide. There was then added 1.9 g of ammonium chloride and 2.3 g of sodium azide and the resulting solution was heated at 120° C. for 84 hours. The mixture was then poured into 500 ml of water and acidified to pH 2 with concentrated hydrochloric acid. The light yellow precipitate which formed was separated by filtration, washed with water and dried to give 3-(1H-tetrazol-5-yl)-2(1H)-naphthyridinone (1/3 hydrochloride) melting at greater than 300° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04735948
Source datasetuspto-grants-1988_04
ORD IDord-4ba9c51df6664162b05677b6cc706306
Source noteuspto-grants-1988_04