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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1837445Generated: October 31, 2026

Methanol → HCID 12993699, compound

https://huagongshe.com/reaction/1837445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium AcetateHCID 517045—
ReactantHCID 12993698HCID 12993698—
ReactantHCID 178418416HCID 178418416—
Catalyst1,4-Bis(diphenylphosphino)butaneHCID 82124—
Catalystpalladium(II) acetateHCID 167845—
ProductHCID 12993699HCID 12993699—

Reaction Steps

A solution of 4-amino-2,3-dichloro-6-(5-oxazolyl)pyridine (800 mg, 3.48 mmol), sodium acetate (571 mg, 6.96 mmol), palladium acetate (16 mg, 0.07 mmol), and 1,4-bis(diphenylphosphino)butane (30 mg, 0.07 mmol) in methanol (25 mL) was pressurized with carbon monoxide at 100 psi. After 12 hours at 100° C., the reaction mixture was cooled and concentrated. The residue was taken up into ethyl actetate and washed twice with water. The organic layer was dried (MgSO4) and concentrated to provide methyl 4-amino-3-chloro-6-(5-oxazolyl)pyridine-2-carboxylate (788 mg, 3.10 mmol), mp 166-70° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06784137B2
Source datasetuspto-grants-2004_08
ORD IDord-c58f062e7b674d449002cab98030791b
Source noteuspto-grants-2004_08