Sodium Carbonate → HCID 23690030, compound

Participants

Reaction Steps

A solution of ethyl 5-[2-(4-aminophenoxy)ethoxy]chromone-2-carboxylate (3.4g.) in 95% ethanol (250ml.) was boiled, to which was added at once an aqueous solution (20ml.) of sodium carbonate (0.5g.) under heating. The resultant mixture was refluxed for 2 hours. After cooling, the ethanol was evaporated under reduced pressure. The residue was recrystallized from 80% aqueous ethanol to give brown scaly crystals (3.5g.) of sodium 5-[2-(4-aminophenoxy)ethoxy]chromone-2-carboxylate.

Provenance & Evidence