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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2179995Generated: October 31, 2026

Sodium Carbonate → HCID 10135370, compound

https://huagongshe.com/reaction/2179995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant5-Fluoro-2-methoxyphenylboronic acidHCID 2782673—
ReactantHCID 22248864HCID 22248864—
CatalystHCID 178418397HCID 178418397—
SolventHexaneHCID 8058—
Solvent1,2-DimethoxyethaneHCID 8071—
SolventEthyl AcetateHCID 8857—
ProductHCID 10135370HCID 10135370—

Reaction Conditions

Temperature90 °C

Reaction Steps

Pd(PPh3)4 (8 mg) is added to a solution of 2-chloro-5-(2,4-dimethoxy-phenyl)-3,6-diethyl-pyrazine (70 mg) in DME (2 ml) at room temperature, followed by 2-methoxy-5-fluorophenylboronic acid (45 mg) and Na2CO3 (1M, 0.5 ml). The resulting mixture is heated to 90° C. for 20 hours, then cooled to room temperature. The reaction mixture is diluted with 50% EtOAc in hexane and washed with water and brine, dried, filtered and evaporated. The crude is purified by chromatography (eluted with 15% EtOAc in hexane) to give 2-(2,4-Dimethoxy-phenyl)-3,6-diethyl-5-(5-fluoro-2-methoxy-phenyl)-pyrazine compound 3. MS: 397.3 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06887875B2
Source datasetuspto-grants-2005_05
ORD IDord-e477b4b2af3b4fa296edda1fa9f98ccb
Source noteuspto-grants-2005_05