Ammonia → HCID 13091173, compound

Participants

Reaction Steps

Cold concentrated ammonia solution (30%, 80 ml) was added to a stirred suspension of ethyl 5-(4-methoxyphenyl)-4-oxo-4H-pyran-2-carboxylate (12.4 g) in ethanol (120 ml) at 5°-10° C. The mixture was stirred for a further 30 minutes at 0°-5° C. then the solid title product was washed with water and dried (mp 262°-263° C. with decomposition).

Provenance & Evidence