Allyl bromide → HCID 21545962, compound

Participants

Reaction Steps

A mixture of 12.5 parts of ethyl 6-hydroxy-1-thiachromone-2-carboxylate, 6.8 parts of allyl bromide and 9.7 parts of anhydrous potassium carbonate in 80 parts of acetone was heated under reflux for 20 hours. The mixture was filtered and the solution was evaporated. The residual material was dissolved in chloroform and the solution was washed with water, then the chloroform was evaporated and the remaining material was crystallised from ethanol to give 11.8 parts of ethyl 6-allyloxy-1-thiachromone-2-carboxylate, melting point, 107.5°-8°C.

Provenance & Evidence