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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898237Generated: October 31, 2026

Hydrochloric Acid → 4-Chloro-3-(propan-2-yl)benzene-1-sulfonyl chloride

https://huagongshe.com/reaction/1898237

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSulfur DioxideHCID 1119—
Reactant4-Chloro-3-isopropylanilineHCID 19891495—
ReactantSodium NitriteHCID 23668193—
CatalystCuprous chlorideHCID 62652—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
Product4-Chloro-3-(propan-2-yl)benzene-1-sulfonyl chlorideHCID 58268238—

Reaction Steps

Amounts used: 25 mL of acetic acid was saturated with sulfur dioxide, 671 mg of copper(I) chloride, 4.60 g (27.1 mmol) of 4-chloro-3-isopropyl-phenylamine dissolved in a mixture of 4 mL of acetic acid and 9 mL of concentrated hydrochloric acid, 2.3 g of sodium nitrite in 10 mL of water. Flash chromatography on silica using 3-20% ethyl acetate in hexanes afforded 2.18 g of the product as a white solid. LC-MSD spectrum not observed.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519135B2
Source datasetuspto-grants-2013_08
ORD IDord-940a65fb470b40a88ecb9a33a29eb5b5
Source noteuspto-grants-2013_08