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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 912554Generated: October 29, 2026

Triphenylphosphine → HCID 59486242, compound

https://huagongshe.com/reaction/912554

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
Reactant2,3-DichloropyrazineHCID 78575—
ReactantHCID 59486262HCID 59486262—
Catalystpalladium(II) acetateHCID 167845—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 59486242HCID 59486242—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 4-methylsulfanyl-6-tributylstannanyl-pyrimidine (4) (1.80 g, 4.33 mmol), 2,3-dichloro-pyrazine (1.94 g, 13 mmol), PPh3 (0.907 g, 3.46 mmol) and palladium (II) acetate (194 mg, 0.866 mmol) in dioxane (15 mL) is degassed and sealed in a pressure tube. After stirring at 120° C. for 16 h, the reaction mixture is evaporated and purified by silica gel flash chromatography eluting with ethyl acetate in hexanes from 10% to 30% to afford the desired product 4-(3-chloro-pyrazin-2-yl)-6-methylsulfanyl-pyrimidine (37).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08026243B2
Source datasetuspto-grants-2011_09
ORD IDord-a157cd40c1a3459fae08835418cef8f0
Source noteuspto-grants-2011_09