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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2224083Generated: October 31, 2026

Pyridine → HCID 68434859, compound

https://huagongshe.com/reaction/2224083

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Bromo-2-methylpropanoyl chlorideHCID 11106049—
ReactantHCID 14053206HCID 14053206—
SolventEthyl AcetateHCID 8857—
ProductHCID 68434859HCID 68434859—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 2-amino-5-benzenesulfonyl-phenol (1.06 g., 4.26 mmol) in 8 mL ethyl acetate was added pyridine (0.345 mL, 4.26 mmol). The solution was cooled to 0° C. and 2-bromo-2-methyl-propionyl chloride (0.553 mL, 4.47 mmol) was added dropwise and stirring was continuted for 2 hours. The reaction mixture was diluted with 50 mL ethyl acetate and washed with 50 mL 10% aqueous hydrogen chloride, 50 mL saturated aqueous sodium bicarbonate, 50 mL water, then 50 mL brine. The organic phase was dried over sodium sulfate and concentrated in vacuo to yield 5-benzenesulfonyl-2-(2-bromo-2-methyl-propylamino)-phenol as a crude oil, which was used directly in the following step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07378415B2
Source datasetuspto-grants-2008_05
ORD IDord-1955418cbc974cb6a37a586ff6461458
Source noteuspto-grants-2008_05