Hydrochloric Acid → HCID 90314056, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(4-fluorophenoxy)-4-(trifluoromethyl)benzaldehyde (1.16 g, 4.08 mmol) in tBuOH (11.60 mL), water (7.30 mL), acetonitrile (7.30 mL) was added sodium dihydrogen phosphate (1.47 g, 12.25 mmol), 2-methyl-2-butene (2.16 mL, 20.42 mmol) and sodium chlorite (1.11 g, 12.25 mmol) and the reaction mixture was stirred at 25° C. for 2 hours. The reaction was acidified with 1N HCl and diluted with ethyl acetate. Sodium sulfide was added to remove the slightly yellow color. The 2 layers were separated and the aqueous layer extracted 2 additional times with ethyl acetate. The organics were combined, dried with MgSO4, filtered and evaporated to give 2-(4-fluorophenoxy)-4-(trifluoromethyl)benzoic acid (1.0 g, 82%) as a yellow solid that was used in the next step without further purification. 1H NMR (400 MHz, DMSO) δ 8.01 (d, J=8.0 Hz, 1H), 7.62 (d, J=7.9 Hz, 1H), 7.33-7.18 (m, 3H), 7.14-7.01 (m, 2H) ppm.

Provenance & Evidence