Citric Acid → HCID 86662043, compound

Participants

Reaction Steps

To a mixture of 55% sodium hydride in oil (733 mg) and DMF (20 mL), a mixture of 3-(methylsulfonyl)aniline (1.44 g) and THF (20 mL) were added under ice cooling and stirred for 30 minutes under ice cooling. After dropwise addition of a mixture of 4,6-dichloro-2-(methylsulfanyl)pyrimidine-5-carboxamide (2.0 g) and DMF (30 mL) over 15 minutes, the reaction liquid was further stirred under ice cooling for 15 minutes. After addition of 10% aqueous citric acid (300 mL) and extraction with ethyl acetate, the organic layer was washed with saturated aqueous sodium chloride. After drying over anhydrous magnesium sulfate, the solvent was concentrated, and the precipitated solid was collected by filtration and dried to give 4-chloro-2-(methylsulfanyl)-6-{[3-(methylsulfonyl)phenyl]amino}pyrimidine-5-carboxamide (1.95 g) as a light yellow solid.

Provenance & Evidence