Water → HCID 10857002, compound

Participants

Reaction Steps

In 5 ml of methyl isobutyl ketone were suspended 216 mg (3.85 mmoles) of potassium hydroxide and 73 mg (0.226 mmoles) of tris[2-(2-methoxyethoxy)ethyl]-amine followed by addition of 900 mg (8.99 mmoles) of imidazolidine-2,4-dione, and the mixture was stirred at room temperature for 10 minutes. Then, 704 mg (4.50 mmoles) of benzyloxymethyl chloride was added dropwise at 0° C. and the mixture was stirred at room temperature for 3 hours. To this reaction mixture was added water and the organic layer was separated and washed successively with water and saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. The solvent was then distilled off under reduced pressure and the residue was subjected to silica gel chromatography (eluent: hexane:ethyl acetate =1:1) to give 687 mg (3.12 mmoles) of 3-benzyloxymethylimidazolidine-2,4-dione. Yield 70% (based on benzyloxymethyl chloride) 1H-NMR, δ(CDCl3): 3.90 (2H, s), 4.60 (2H, s), 5.05 (2H, s), 6.00-6.20 (1H, brs, -NH), 7.20-7.45 (5H, m)

Provenance & Evidence