Hydrochloric Acid → HCID 59235015, compound

Participants

Reaction Steps

A solution of tetrabutylammonium fluoride in tetrafuran (602 μL) was added to a mixed solution of 3-[4-(t-butyl-diphenylsilyloxy)-2-butynyl]-5-methyl-5-[4-(1-methylethoxy)phenyl]imidazolidine-2,4-dione (300 mg, 547 μmol) in tetrahydrofuran (5 mL) at room temperature. After completion of the reaction, 1 mol/L hydrochloric acid (0.5 mL) was added, followed by extraction with ethyl acetate-water. The organic layer was washed with a saturation sodium chloride solution and then dried over sodium sulfate. The solvent of the filtrate was evaporated, and the residue was purified by silica gel column chromatography (chloroform:methanol=20:1) to obtain 115 mg of the title compound (yield: 90%) as a colorless oil.

Provenance & Evidence