Hydrochloric Acid → HCID 18408754, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-(4-hydroxyphenyl)barbituric Acid (1.9 g) and tertbutyl dimethylsilyl chloride (4.68 g) in 20 ml of anhydrous dimethylformamide are added 4.4 g of imidazole and the mixture is heated to 55° C. for 5 hours. The temperature is then brought to room temperature and the reaction mixture is poured into 1 N hydrochloric acid and extracted twice with ethyl acetate. The pooled organic extracts are washed with water and dried over sodium sulfate. By concentration of the solution a white solid separates, which is kept at 0° C. overnight, then it is filtered to give 2.185 g of the product.

Provenance & Evidence