Potassium Carbonate → HCID 15291372, compound

Participants

Reaction Steps

To a solution of 5-(4-hydroxyphenyl)-1-[2-(4-morpholinyl)ethyl]pyrrolidin-2-one (0.99 g) in dry tetrahydrofuran (50 ml) was added methyl isocyanate (0.22 ml) at ambient temperature, with stirring, over ten rains. Milled potassium carbonate (0.565 g) was added, the reaction mixture was stirred for 2 days and filtered through a pad of celite. The filter cake was washed with ethyl acetate, and the combined filtrates were concentrated. The residue was purified by flash column chromatography (silica gel, 1% triethylamine/1-10% methanol/ether) and (silica gel, 5% methanol/ether). The appropriate fractions were collected and concentrated to afford 0.62 g (52.3%) of product. Recrystallization from absolute ethanol/ether gave the analytical sample, mp 119°-120° C.

Provenance & Evidence