Hydrochloric Acid → 1-(3,4,5-Trimethoxybenzyl)-3-(phenylmethyl)-3-(2-hydroxyethyl)-2-oxopyrrolidine

Participants

Reaction Conditions

Reaction Steps

Combine 1-(3,4,5-trimethoxybenzyl)-3-(phenylmethyl)-3-(2-(t-butyldimethylsilyloxy)ethyl)-2-oxopyrrolidine (1.0 g, 1.95 mmol) and tetrahydrofuran (5 mL). Cool to 0° C. using a ice bath. Add a solution of tetrabutylammonium fluoride (3.90 mL, 1 M in THF, 3.90 mmol). After the addition is complete, warm to ambient temperature. After 1.5 hours, add aqueous 1 M hydrochloric acid solution (20 mL). Extract three times with ethyl acetate. Dry the combined organic layers over Na2SO4, filter, and concentrate in vacuo to obtain a residue. Chromatograph the residue on silica gel eluting with 1/1 ethyl acetate/hexane to give the title compound: Rf=0.27 (silica gel, 1/1 ethyl acetate/hexane).

Provenance & Evidence