Ammonia → HCID 21546404, compound

Participants

Reaction Conditions

Reaction Steps

Anhydrous ammonia gas was passed through a stirred solution of 38.4 parts of 8-allyl-5-tetrahydrofurfuryloxy-4-oxo-4H-1-benzopyran-2-carboxylic acid ethyl ester in 600 parts of anhydrous ethanol at 45° C for 3 hours. The resulting dark, reddish brown solution was cooled to 0° C. A white crystalline solid was formed, which was collected and dried in vacuo. 24.7 Parts of 8-allyl-5-tetrahydrofurfuryloxy-4-oxo-4H-1-benzopyran-2-carboxamide were obtained, melting point 211.5°-213.5° C.

Provenance & Evidence