Sodium hydride → HCID 21865074, compound

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Reaction Steps

To a 100-mL, round-bottomed flask containing 4-(4-tert-butyl-phenyl)-6-chloro-pyrimidine, (Example 1(a)), (0.15 g, 0.61 mmol) and 2-methyl-benzothiazol-5-ol (0.14 g, 0.85 mmol, Aldrich) in DMF (10 mL), was added NaH (34 mg, 0.85 mmol, 60% in mineral oil, Aldrich) at room temperature. The solution was then stirred at room temperature for 4 h. After the solvent was removed in vacuum, EtOAc (10 mL) was added to the residue, and the organic layer was washed with water (8 mL), dried over Na2SO4, filtered, and concentrated in vacuum. After purifying the crude product by silica gel chromatography (4:1 hexanes/EtOAc), the resulting solid was dissolved in acetone (5 mL). Water (8 mL) was added dropwise to this mixture, and a white precipitate fell out of solution, which was collected by filtration, washed with water (0.5 mL), and dried under vacuum at 50° C. for 48 h to furnish the title compound. Mp: 163–165° C. MS (ESI, pos. ion) m/z: 376 (M+1). Anal. Calcd for C23H21N3OS.(H2O)1/3: C, 69.26; H, 5.72; N, 11.01. Found: C, 69.19; H, 5.61; N, 11.03.

Provenance & Evidence