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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1830772Generated: October 31, 2026

Triethylamine → 2-Amino-5-phenylpyrazine

https://huagongshe.com/reaction/1830772

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant3-Bromo-5-phenylpyrazin-2-amineHCID 12453552—
CatalystPalladium hydroxideHCID 9942167—
SolventEthyl AcetateHCID 8857—
Product2-Amino-5-phenylpyrazineHCID 59873475%

Reaction Steps

To a stirred solution of 3-bromo-5-phenyl-2-amino pyrazine (80 mg; 0.32 mmol), in ethyl acetate (1 mL) was added triethylamine (139 μL; 1.0 mmol) and Pd(OH)2 (10 mg; 20% wt on carbon). The reaction was placed under a hydrogen atmosphere at 45 psi and shook for 6 hours. The reaction was filtered and concentrated under reduced pressure. The product was purified using a biotage 12L eluting with ethyl acetate to yield an off white solid (75% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07067506B2
Source datasetuspto-grants-2006_06
ORD IDord-b70a0479d4224bcea20ea2a4ed2f9997
Source noteuspto-grants-2006_06