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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1438256Generated: October 26, 2026

Methanesulfonyl chloride → N-(4-bromo-2-ethylphenyl)methanesulfonamide

https://huagongshe.com/reaction/1438256

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonyl chlorideHCID 31297—
Reactant4-Bromo-2-ethylanilineHCID 2801283—
SolventPyridineHCID 1049—
SolventEthyl AcetateHCID 8857—
ProductN-(4-bromo-2-ethylphenyl)methanesulfonamideHCID 646915281%

Reaction Steps

4-Bromo-2-ethyl-aniline (2 mL, 14 mmol) dissolved in anhydrous pyridine (35 mL) at toom temperature was treated with methylsulfonyl chloride (1.3 mL, 16.8 mmol). The reaction was stirred at that temperature for 15 hours before it was diluted with EtOAc. The mixture was washed with H2O, brine and dried over MgSO4. The solvent was removed in vacuo and the residue was purified with flash chromatography (SiO2, 5-30% EtOAc in hexanes) to afford the desired product (3.1 g, 81% yield). 1H NMR (300 MHz, CDCl3): δ 1.25 (t, J=7.5 Hz, 3H), 2.61-2.68 (m, 2H), 3.02 (s, 3H), 6.36 (s, 1H), 7.36-7.39 (m, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622605B2
Source datasetuspto-grants-2009_11
ORD IDord-9c70824790b34602ac8ec277be79b043
Source noteuspto-grants-2009_11