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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1283875Generated: November 1, 2026

Hydrochloric Acid → HCID 178431377, compound

https://huagongshe.com/reaction/1283875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium AzideHCID 33557—
ReactantHCID 21516772HCID 21516772—
SolventDimethylformamideHCID 6228—
ProductHCID 178431377HCID 178431377—

Reaction Conditions

Temperature95 °C

Reaction Steps

A stirred mixture of [1',3'-dioxo-4'-chloro-5'-methylspiro(cyclopentane-1,2'-indan)-6'-yloxy]acetonitrile (9.0 g., 0.03 mole), sodium azide (3.9 g., 0.06 mole) and ammonium chloride (3.2 g., 0.06 mole) in dimethylformamide (150 ml.) is heated at 95°C. for 2 hours then cooled and poured into dilute aqueous hydrochloric acid affording 9.9 g. of 5-[1',3'-dioxo-4'-chloro-5'-methylspiro(cyclopentane-1,2'-indan)-6'-yloxymethyl]tetrazole which melts at 211°-212°C. after recrystallization from acetic acid-water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03976681
Source datasetuspto-grants-1976_08
ORD IDord-02751443c9ec4aaeaa5f170ac6faf571
Source noteuspto-grants-1976_08