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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45771Generated: October 29, 2026

Sodium Carbonate → HCID 67997101, compound

https://huagongshe.com/reaction/45771

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantPropanoic acid, 2-bromo-2-methyl-, ethyl esterHCID 11745—
ReactantHCID 178527728HCID 178527728—
SolventDimethylformamideHCID 6228—
ProductHCID 67997101HCID 6799710188%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 3-bromopyridine-4-thiol (step A, 4.75 g, 25 mmol), ethyl 2-bromoisobutyrate (9.75 g, 50 mmol), and sodium carbonate (7.95 g, 75 mmol) in DMF (50 mL) was stirred at 60° C. for 1 hour. The reaction mixture was partitioned between water (100 mL) and ethyl acetate (100 mL). The organic layer was washed with water (2×100 mL) and saturated sodium chloride (100 mL). The aqueous washes were back extracted with ethyl acetate (2×100 mL). The combined organic layers were dried over sodium sulfate, concentrated, and purified by normal phase chromatography (a gradient of 0-25% ethyl acetate in hexane) to yield ethyl 2-(3-bromopyridin-4-ylthio)-2-methylpropanoate as a pale yellow oil (6.6 g, 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541589B2
Source datasetuspto-grants-2013_09
ORD IDord-3c7ac6e252394783b61fd703cdb00c62
Source noteuspto-grants-2013_09