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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 333533Generated: October 30, 2026

Aniline → HCID 61699136, compound

https://huagongshe.com/reaction/333533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
Reactant2,3-DichloropyrazineHCID 78575—
ReactantBinap, (A+-)-HCID 634876—
ReactantSodium t-butoxideHCID 23676156—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
ProductHCID 61699136HCID 6169913618.1%

Reaction Conditions

Temperature90 °C

Reaction Steps

Aniline (11.25 g, 121 mmol), dichloropyrazine (20 g, 134 mmol), sodium t-butoxide (15.48 g, 161 mmol) were stirred in toluene (300 mL) under nitrogen purging for 15 minutes. Pd2(dba)3 (1.23 g, 1.34 mmol) and BINAP (3.34 g, 5.47 mmol) were added. The reaction was heated to 90° C. for 5 h. After it cooled to room temperature, the reaction was filtered through Celite®. After solvent evaporation, the residue was purified with column chromatography using 30% ethyl acetate in hexanes as solvent to give 3-chloro-N-phenylpyrazin-2-amine (4.5 g, 16.3% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883322B2
Source datasetuspto-grants-2014_11
ORD IDord-c481bd70eae74b56bab4250f5a898d35
Source noteuspto-grants-2014_11