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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1744878Generated: November 1, 2026

Stannous Chloride → HCID 57429283, compound

https://huagongshe.com/reaction/1744878

Reaction equation

Participants

RoleNameHCIDCharge
ReactantStannous ChlorideHCID 24479—
Reactant2-Bromo-4-fluoroanilineHCID 242873—
ReactantSodium NitriteHCID 23668193—
SolventHydrochloric AcidHCID 313—
ProductHCID 57429283HCID 57429283—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a suspension of 2-bromo-4-fluoroaniline in concentrated HCl (1.5M) at −10° C. was slowly added a 10.0M aqueous solution of NaNO2 (1.1 eq). The mixture was stirred at 0° C. for 2.5 hrs. A cold (−30° C.) solution of SnCl2 (3.8M) in concentrated HCl was then slowly added while maintaining the internal temperature below 10° C. The resulting mixture was stirred mechanically for 20 min at 0, then at room temperature for 1 hr. The thick slurry was filtered and the solid was air dried overnight. The solid was resuspended in cold HCl and filtered again. The dried material was suspended in Et2O, stirred for 10 min, filtered and air dried overnight to give the title compound as a beige solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07019022B2
Source datasetuspto-grants-2006_03
ORD IDord-6b32a0e711f74e5bb71eed7d70731a86
Source noteuspto-grants-2006_03