2-Naphthol → HCID 55374169, compound

Participants

Reaction Steps

To a 20 mL vial containing a magnetic stir bar was added sodium hydride (103.7 mg, 4.32 mmol, 60% in mineral oil) followed by anhydrous DMF (2 mL) resulting in gas evolution. To this stirring reaction mixture was added 2-naphthol (623 mg, 4.32 mmol) as a solid in small portions over 5 min. The mixture was stirred at room temperature for 3 min and then 2,6-difluorobenzonitrile (601 mg, 4.32 mmol) in anhydrous DMF (4 mL) was added in one portion. The reaction mixture was heated in an oil bath at 100 ° C. for a total of 2 h and allowed to cool to room temperature. The reaction mixture was diluted with water (15 mL) and the resulting mixture was extracted with EtOAc (2×20 mL). The combined organic extracts were washed with water (3×20 mL), dried (Na2SO4), filtered and concentrated to give K-1 as brown solid (1.216 g) of sufficient purity (contained 2-naphthol) to be used in the subsequent step. 1H NMR.

Provenance & Evidence