Allyl bromide → HCID 118689797, compound

Participants

Reaction Steps

A 5-L flask equipped with a stirrer, thermometer, and nitrogen purging line was charged with 458 g of diphenolic acid, 884 g of potassium carbonate, and 2,000 g of dimethylacetamide. With stirring in a nitrogen atmosphere at room temperature, 774 g of allyl bromide was added dropwise, followed by stirring at 60° C. for 58 hours. With the temperature kept, 221 g of potassium carbonate, 193 g of allyl bromide and 500 g of dimethylacetamide were added, followed by stirring at 60° C. for 20 hours. Under ice cooling, 2,000 g of water was added dropwise to quench the reaction. Then 1,000 g of toluene, 1,000 g of hexane, and 2,000 g of water were added to the reaction solution, from which an organic layer was taken out. The organic layer was sequentially washed with 2,000 g of water, four 500-g portions of water, and 500 g of saturated saline solution. Thereafter the solvent was distilled off, obtaining 686 g of allyl 4,4-bis(4-allyloxyphenyl)pentanoate in crude form.

Provenance & Evidence