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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 636254Generated: October 31, 2026

Hydrazine → HCID 178478026, compound

https://huagongshe.com/reaction/636254

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant2-ChlorobenzonitrileHCID 13391—
ReactantSodium NitriteHCID 23668193—
SolventMethanolHCID 887—
ProductHCID 178478026HCID 178478026—

Reaction Steps

First, 71.2 mmol of 2-chlorobenzonitrile was dissolved in 50 ml of methanol, and 356 mmol of hydrazine and 35.6 mmol of 28% methylate were added thereto, followed by keeping at the reflux temperature for 5 hours. The reaction mixture was concentrated under reduced pressure. The residue was dissolved in 50 ml of 50% hydrochloric acid, and 74.8 mmol of sodium nitrite was added thereto at 0C to cause reaction. The reaction mixture was extracted with ethyl acetate to give 5-(2-chlorophenyl)tetrazole. Yield, 70%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06191289B1
Source datasetuspto-grants-2001_02
ORD IDord-3e7640eb580a4bbcbbf9d26670c14b66
Source noteuspto-grants-2001_02