Triethylamine → HCID 178467274, compound

Participants

Reaction Steps

A solution of 1.88 g. (0.01 m.) of p-carbamoyloxyaniline hydrochloride and 1.0 g. (0.01 m.) of triethylamine in 50 ml. of methanol is added to a hot solution of 2.21 g. (0.01 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 150 ml. of methanol. The resulting mixture is refluxed for two hours, cooled and the filtered solid recrystallized to give 5-acetyl-3-[1-(p-carbamoyloxyphenylamino)ethylidene]-4-hydroxy-2H-pyran-2,6(3H)-dione, m.p. 213°-215° C.

Provenance & Evidence