Sodium hydride → HCID 57651773, compound

Participants

Reaction Steps

To a suspension of NaH (152 mg, 3.8 mmol, 60% dispersion in mineral oil) in anhydrous THF (2 mL) at room temperature was slowly added a solution of 2-amino-4-(trifluoromethyl)-6-(2,2,2-trifluoroethoxy)pyrimidine (0.50 g, 1.9 mmol) in anhydrous THF (2 mL) and the resulting mixture was stirred 20 min. To the mixture was added 4-trifluoromethylphenyl isocyanate (326 μL, 2.28 mmol) and the resulting mixture was allowed to stir at room temperature. After 18 h of stirring the reaction mixture was diluted with 2 N HCl (30 mL). The acidic mixture was extracted with ethyl acetate. The organics were combined, dried over MgSO4, filtered and concentrated. The resulting residue was mixed with ethyl acetate (30 mL), diluted with hexane (100 mL) and allowed to stand at room temperature. After 18 h the insoluble material was filtered and dried in a vacuum oven (50° C.) to afford 102 as a white solid (379 mg, 44% yield): m.p. 197-199° C.; 1H NMR (DMSO-d6) δ 10.76 (s, 1H), 10.71 (s, 1H), 7.72 (app s, 4H). 7.35 (s, 1H), 5.25-5.16 (q, 2H, J=8.9 Hz); ESI/MS 448 (M+H), 447 (M−H).

Provenance & Evidence