Pyridine → HCID 22324798, compound

Participants

Reaction Steps

Trifluoromethanesulfonic anhydride (0.12 mL, 0.74 mmol) was added to a solution of pyridine (0.14 mL, 1.77 mmol) in dichloromethane (0.5 mL). The resulting mixture was added over 15 min to an ice-cooled solution of 6-(2-hydroxy-1,1-dimethylethoxy)-5-(2-phenylethyl)-3,4-dihydro-1(2H)-naphthalenone (100 mg, 0.30 mmol) in dichloromethane (0.5 mL). The resulting mixture was stirred for 15 min and was then quenched by the addition of water (2 mL). The mixture was diluted with 1 M aqueous hydrochloric acid (10 mL) and extracted with ethyl acetate (3×5 mL). The combined extracts were washed with 1 M aqueous hydrochloric acid (10 mL), saturated aqueous copper sulfate (3×5 mL), and was then dried (brine, Na2SO4) and concentrated. The residue was purified by dry-flash column chromatography (SiO2, 5-40% ethyl acetate-hexane) to give 2-methyl-2-{[5-oxo-1-(2-phenylethyl)-5,6,7,8-tetrahydro-2-naphthalenyl]oxy}propyl trifluoromethanesulfonate as a colorless oil, 125 mg, 90% yield. NMR spectrum was consistent with structure. MS EI: M+• 470.1376 (M+• 470.1375).

Provenance & Evidence