3-Butyn-1-OL → HCID 59305318, compound

Participants

Reaction Steps

In a 0.5-2 ml Biotage conical microwave vial equipped with magnetic spin vane was dissolved 1-(3-Bromo-4-fluoro-phenyl)-2-(4-difluoromethoxy-phenyl)-ethane-1,2-dione (100 mg, 0.268 mmol) in triethylamine (1.25 mL). Copper iodide (10 mg, 0.052 mmol) and Tetrakis(triphenylphosphine) palladium (20 mg, 0.017 mmol) were added. Lastly But-3-yn-1-ol (100 mg, 1.04 mmol) was added, the vial was covered with a teflon septa, an aluminum cap was crimped in place, and the assembly was set on a Biotage Emrys microwave instrument to irradiate at 80° C. for one hour. The crude reaction was diluted with diethylether (60 mL), washed with saturated ammonium chloride (2×30 mL) and purified via column chromatography on a Yamazen W-Prep 2XY using a two-step automatic gradient elution: 100% hexanes (4 min) to 18% EtOAc (12 min), hold 4 min then to 80% EtOAc (16 min) hold 15 minutes. The resultant oil was placed under high vacuum overnight to afford 80 mgs of beige solid (82%).

Provenance & Evidence