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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2373171Generated: November 2, 2026

Potassium Carbonate → HCID 59852410, compound

https://huagongshe.com/reaction/2373171

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 3-Amino-6-bromopyrazine-2-carboxylateHCID 227251—
Reactant3-Fluorophenylboronic acidHCID 2733986—
CatalystHCID 178418476HCID 178418476—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 59852410HCID 5985241082.3%

Reaction Steps

Methyl 3-amino-6-bromopyrazine-2-carboxylate (0.116 g, 0.5 mmol), 3-fluorophenylboronic acid (0.14 g, 1.0 mmol), dichlorobis(triphenylphosphine)palladium(II) (0.018 g, 0.02 mmol), and K2CO3 (0.14 g, 1.0 mmol) were combined in 3 mL of 4:1 CH3CN:H2O and heated to 150° C. for 10 minutes in the SmithSynthesizer microwave. Upon cooling, the reaction mixture was diluted with MeOH and H2O to dissolve all but the catalyst. The mixture was filtered and the pH was adjusted to 6 with 2N HCl. The solution was concentrated in vacuo, and the solids were collected to afford 3-amino-6-(3-fluorophenyl)pyrazine-2-carboxylic acid (96 mg) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07459454B2
Source datasetuspto-grants-2008_12
ORD IDord-93cbf6acddde484ba727071f0bc466da
Source noteuspto-grants-2008_12