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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2358255Generated: October 31, 2026

Hydrochloric Acid → HCID 53434041, compound

https://huagongshe.com/reaction/2358255

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 4-bromobenzoateHCID 22043—
ReactantSodium bis(trimethylsilyl)amideHCID 2724254—
Reactant2-Fluoro-4-methylpyridineHCID 2737403—
SolventTetrahydrofuranHCID 8028—
ProductHCID 53434041HCID 53434041—

Reaction Steps

To a solution of sodium bis(trimethylsilyl)amide (235 mL, 2M) in THF (750 mL) under nitrogen, cooled to 2° C., was added 2-fluoro-4-methylpyridine (25 g, 0.225 mol) and the solution stirred for 45 minutes in an ice bath. Ethyl 4-bromobenzoate (55 g, 0.239 mol) was added and the reaction was stirred overnight at RT. The reaction mixture was poured into excess aqueous 2N HCl, and the aqueous layer was made basic with 5 N NaOH and extracted with EtOAc. The organic extracts were combined, washed with brine, dried over MgSO4, filtered and concentrated under reduced pressure. The residue was dissolved in CH2Cl2 and filtered through a cotton plug. Hexanes were added and the CH2Cl2 was removed under reduced pressure until precipitation of the title compound occurred as a pale yellow solid. 1H NMR (400 MHz, CDCl3): δ8.20 (m, 1H), 7.85 (m, 2H), 7.65 (m, 2H), 7.05 (m, 1H), 6.82 (m, 1H), 4.30(s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07763634B2
Source datasetuspto-grants-2010_07
ORD IDord-fe96d6e47f854ecabcc5a512d54ece94
Source noteuspto-grants-2010_07