Methyl iodide → HCID 57438725, compound

Participants

Reaction Steps

To a solution of benzyl 2-(5-fluoro-2-pyridyloxy)propionate (2.9 g, 10 mmol) and methyl iodide (3.3 mL, 53 mmol) in 40 mL of anhydrous THF at −78° C. was added potassium hexamethyldisilazide (0.5 M in toluene, 32 mL, 16 mmol). The reaction was allowed to warm to room temperature over 3 h and was partitioned between saturated ammonium chloride (150 mL) and EtOAc (150 mL). The organic layer was separated and the aqueous layer extracted with EtOAc (2×50 mL). The combined organic extracts were dried over anhydrous sodium sulfate, filtered, and concentrated to dryness, and the residue was purified by flash column chromatography on silica gel eluted with 0 to 20% EtOAc in hexane to give the title compound. 1H NMR (500 MHz, CD3OD): δ 7.63 (d, 1H), 7.44 (ddd, 1H), 7.27 (m, 3H), 7.18 (m, 2H), 6.74 (dd, 1H), 5.09 (s, 2H) 1.64 (s, 6H). LC-MS: m/e 290 (M+H)+ (3.7 min).

Provenance & Evidence