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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 503906Generated: November 3, 2026

Ammonium Chloride → HCID 59428415, compound

https://huagongshe.com/reaction/503906

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantMethanesulfonyl chlorideHCID 31297—
Reactant(4-Bromo-2-methylphenyl)methanolHCID 22280088—
SolventDichloromethaneHCID 6344—
ProductHCID 59428415HCID 59428415—

Reaction Conditions

Temperature-15 °C

Reaction Steps

To a solution of (4-bromo-2-methyl-phenyl)-methanol (46.65 g, 0.2320 mol) in DCM (500 mL) at −15° C. was added mesyl chloride (20.65 mL, 0.2668 mol) followed by TEA (37.04 mL, 0.2668 mol). The reaction was stirred at −15° C. for 1.5 hour. A saturated solution of NH4Cl was then added at −15° C. and the resulting mixture was extracted with DCM. The organic phase was dried over MgSO4, filtered, and concentrated under reduced pressure to afford methanesulfonic acid 4-bromo-2-methyl-benzyl ester as a white solid in quantitative yield (65 g), which was used directly in step 3 without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07776910B2
Source datasetuspto-grants-2010_08
ORD IDord-9f16ba67637240f6aa2526fac196a139
Source noteuspto-grants-2010_08