Bromine → HCID 57566634, compound

Participants

Reaction Steps

To a room temperature suspension of 2,2-dimethyl-N-(2-pyrimidin-2-yl-phenyl)-propionamide (˜117 grams, 437 mmoles) in acetic acid (1 L) was added bromine (67 mL, 1.31 moles) as a solution in 100 mL of acetic acid over a 1 hour period. The heterogenous mixture was stirred at room temperature for 5 hours over which time a thick precipitate formed. The mixture was then poured over ice, diluted with 1N Na2S2O3 (2 L), and stirred for 1 hour. The solids were filtered, resuspended in water (2 L), stirred for 1 hour, then filtered and washed with water again. The resulting solids were pumped to dryness at 50° C., resuspended in HOAc (1 L), and treated with bromine (22 mL, 430 mmoles) in acetic acid solution (20 mL) over a 20 minute period. The resulting heterogenous mixture was stirred for 5 hours, then quenched and treated as described above. The resulting solids were vacuum dried at 50° C. to afford the title compound (165 grams) as a tan powder.

Provenance & Evidence