Diisopropylethylamine → HCID 59408785, compound

Participants

Reaction Steps

2-Chloro-1-methylpyridinium iodide (2.2 g, 9.8 mmol) and DIPEA (1 ml) were added to a mixture of 5-fluoropyridin-2-amine 1 (554 mg, 4.9 mmol) and 6-bromonicotinic acid 2 (1 g, 4.9 mmol) in THF. The reaction mixture was stirred at rt for 2 days. At the conclusion of the reaction, the reaction mixture was concentrated to ⅓ of its volume and the precipitated product was filtered off. The filtrate was concentrated, diluted with chloroform (100 ml), washed with water and brine and then dried over Na2SO4. Evaporation of the solvent gave a crude yellow product, which crystallized in EtOAc to give 6-bromo-N-(5-fluoropyridin-2-yl)nicotinamide 3 (1.05 g, 71%) as a white solid. Mp. 173-174° C.

Provenance & Evidence