Acetic Acid → HCID 53632317, compound

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Reaction Steps

150 mg NaH are suspended in 20 ml tetrahydrofuran, and the mixture is cooled in ice. To this suspension is added a solution of 2.5 g ethyl 2-(4-bromo-3-(tetrahydropyran-2-yloxy)butanamido)acetate in 30 ml tetrahydrofuran. The mixture is stirred 40 min, then poured with stirring into a solution of 1 ml acetic acid in 10 ml water at 0° C. The solution is extracted with ether, the organic phase is washed with a saturated solution of NaHCO3, then washed with brine, dried and evaporated. The crude oil obtained is purified by chromatography on silica, eluting with ethyl acetate. A colourless oil is obtained, Rf 0.32 (silica gel plates, thickness 0.25 mm, eluent ethyl acetate).

Provenance & Evidence