Regioselective synthesis of 3-arylpyrido[2,3-b]pyrazines by reaction of arylglyoxals with 2,3-diaminopyridine

Abstract

A series of pyrido[2,3-b]pyrazine derivatives were synthesized in good to excellent yields by condensation reactions of arylglyoxals with 2,3-diaminopyridine in dimethylformamide and ethanol at 90 oC.

Keywords

• 2
• 3-Diaminopyridine
• Arylglyoxals
• Pyrido[2
• 3-b]pyrazines
• Regioselective