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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 651262Generated: October 30, 2026

Hydrogen Sulfide → HCID 178478026, compound

https://huagongshe.com/reaction/651262

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen SulfideHCID 402—
ReactantTriethylamineHCID 8471—
ReactantHydrazineHCID 9321—
Reactant2-ChlorobenzonitrileHCID 13391—
ReactantSodium NitriteHCID 23668193—
SolventMethanolHCID 887—
ProductHCID 178478026HCID 178478026—

Reaction Steps

First, 35.6 mmol of 2-chlorobenzonitrile was dissolved in 50 ml of methanol, and 35.6 mmol of triethylamine and 105 mmol of hydrogen sulfide were added thereto at room temperature, followed by adding 180 mmol of anhydrous hydrazine and keeping at the reflux temperature for 48 hours. The reaction mixture was evaporated under reduced pressure. The residue was dissolved in 50 ml of 5% hydrochloric acid, and 75 mmol of sodium nitrite was added thereto at 0° C. to cause reaction. After completion of the reaction, the reaction mixture was extracted with ethyl acetate to give 5-(2-chlorophenyl)tetrazole. Yield, 54%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06277998B1
Source datasetuspto-grants-2001_08
ORD IDord-ae8dfa32f3fd481683e632394aac2de0
Source noteuspto-grants-2001_08