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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 78571Generated: October 27, 2026

Sodium Carbonate → 5-(4-(Methylsulfonyl)phenyl)-3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrazin-2-amine

https://huagongshe.com/reaction/78571

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant4-(Methanesulfonyl)phenylboronic acidHCID 2734364—
Reactant5-Bromo-3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrazin-2-ylamineHCID 59472205—
CatalystHCID 178418476HCID 178418476—
SolventDimethylformamideHCID 6228—
Product5-(4-(Methylsulfonyl)phenyl)-3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrazin-2-amineHCID 4683456967%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 5-bromo-3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrazin-2-amine (100 mg, 0.3143 mmol), (4-methylsulfonylphenyl)boronic acid (94.29 mg, 0.4714 mmol) and PdCl2(PPh3)2 (11.03 mg, 0.01572 mmol) in DMF (2 mL) was treated with Na2CO3 (471.4 μL of 2 M, 0.9429 mmol) and the reaction placed under an atmosphere of nitrogen and heated at 110° C. in a sealed tube for 16 hours. The resultant precipitate was filtered, washed with water and dried under vacuum (83 mg, 67% Yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841308B2
Source datasetuspto-grants-2014_09
ORD IDord-6eb2f27cfd7a4843aa921662fb933b66
Source noteuspto-grants-2014_09