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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1085Generated: October 23, 2026

Stannous Chloride → 2-Chloro-4-hydrazinylbenzonitrile hydrochloride

https://huagongshe.com/en/reaction/1085

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStannous ChlorideHCID 24479—
Reactant4-Amino-2-chlorobenzonitrileHCID 88728—
ReactantSodium NitriteHCID 23668193—
SolventHydrochloric AcidHCID 313—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product2-Chloro-4-hydrazinylbenzonitrile hydrochlorideHCID 22111849—

Reaction Conditions

Temperature-5 °C

Reaction Steps

5 g of 4-amino-2-chlorobenzonitrile and 40 ml of concentrated HCl in 30 ml of THF are mixed at -5° C.; 2.26 g of NaNO2 in 30 ml of water are added and the mixture is left stirring for 2 hours, 30 g of SnCl2 ·2H2O in 30 ml of concentrated HCl are then added and stirring is maintained at -5° C. for 30 minutes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05723483
Source datasetuspto-grants-1998_03
ORD IDord-951984be58214825afaa7f028775b4b9
Source noteuspto-grants-1998_03