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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429322Generated: October 26, 2026

Hydrochloric Acid → (3-Cyano-4-methoxyphenyl)hydrazine hydrochloride

https://huagongshe.com/reaction/429322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantStannous chloride dihydrateHCID 61436—
Reactant5-Amino-2-methoxybenzonitrileHCID 4102671—
ReactantSodium NitriteHCID 23668193—
SolventWaterHCID 962—
Product(3-Cyano-4-methoxyphenyl)hydrazine hydrochlorideHCID 18355391142.6%

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of sodium nitrite (4.0 g) in water (7 ml) was added to an ice cooled mixture of 3-cyano-4-methoxyaniline (7.7 g) and concentrated hydrochloric acid (21 ml). The mixture was stirred at 0° C. for 30 minutes. To the resultant mixture a solution of tin(II) chloride dihydrate (49 g) and concentrated hydrochloric acid (5 ml) was added at 0° C. and stirred for 1 hour. The precipitates were filtered and washed with ice cooled concentrated hydrochloric acid (10 ml) to give crude (3-cyano-4-methoxyphenyl)hydrazine hydrochloride (14.8 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316485B1
Source datasetuspto-grants-2001_11
ORD IDord-b6fd74e26a264987a673f11046a3f5ad
Source noteuspto-grants-2001_11