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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 513370Generated: October 30, 2026

Hydrochloric Acid → 5-Chloro-4-fluoro-2-nitrobenzene-1-sulfonyl chloride

https://huagongshe.com/reaction/513370

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantThionyl ChlorideHCID 24386—
Reactant5-Chloro-4-fluoro-2-nitroanilineHCID 517835—
ReactantSodium NitriteHCID 23668193—
CatalystCuprous chlorideHCID 62652—
SolventWaterHCID 962—
Product5-Chloro-4-fluoro-2-nitrobenzene-1-sulfonyl chlorideHCID 86669752105.3%

Reaction Steps

In a similar fashion using route 3a general procedure 10, SOCl2 (2.8 ml, 28.8 mmol) in water (15 ml), CuCl (26 mg, 0.26 mmol), 5-chloro-4-fluoro-2-nitroaniline (1 g, 5.2 mmol), NaNO2 (522 mg, 7.5 mmol) and conc. HCl (10 ml) gave the title compound (1.5 g) which was used in the next step without further purification. The structure was confirmed by 1H NMR.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09102688B2
Source datasetuspto-grants-2015_08
ORD IDord-6683550bfa624031943e17fa5b3a0d0e
Source noteuspto-grants-2015_08