Triphenylphosphine → 3-[4-[4-(5-Trifluoromethyl-1,2,4-oxadiazol-3-yl)-2,6-dimethylphenoxy]-butyl]-pyridine

Participants

Reaction Steps

To a suspension of 0.44 g (1.8 mmol) of 4-(5-trifluoromethyl-1,2,4-oxadiazol-3-yl)-2,6-dimethylphenol, 0.25 g (1.66 mmol) of 3-(4-hydroxybutyl)-pyridine, and 0.52 g (1.99 mmol) of triphenylphosphine in 30 ml of methylene chloride under nitrogen at 0° C. was added dropwise a solution of 0.35 g (1.97 mmol of DEAD in methylene chloride, and the resulting mixture was allowed to warm to room temperature. After adding 70 mg of triphenylphosphine, the mixture was stirred at room temperature for 2 days. The solution was concentrated in vacuo and the residue was purified by MPLC (26 id Kieselgel 60 column; hexane/ethyl acetate 3:1) to yield 0.56 g (86.1%) of 3-[4-[4-(5-trifluoromethyl-1,2,4-oxadiazol-3-yl)-2,6-dimethylphenoxy]-butyl]-pyridine, as a pale yellow oil.

Provenance & Evidence