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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405896Generated: October 31, 2026

Ethyl Acetate → HCID 66748419, compound

https://huagongshe.com/reaction/1405896

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium CarbonateHCID 10340—
Reactant2-Amino-3-chloropyrazineHCID 276224—
Reactant4-Phenoxyphenylboronic acidHCID 2734377—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 66748419HCID 6674841996.9%

Reaction Conditions

Temperature80 °C

Reaction Steps

Tetrakis(triphenylphosphine)palladium(0) (0.268 g) was added to a suspension of 3-chloropyrazin-2-amine (1.00 g), 4-phenoxyphenylboronic acid (2.15 g) and sodium carbonate (1.64 g) in DME (37.5 mL) and water (7.5 mL) and the mixture was stirred at 80° C. under N2 for 4 hr. The reaction mixture was added with water and EtOAc. The organic layer was separated, washed with brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane) to give the title compound (1.97 g) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916551B2
Source datasetuspto-grants-2014_12
ORD IDord-a403973d512e49bfa1804fe79ff42d0b
Source noteuspto-grants-2014_12