Benzyl Alcohol → Allyl benzyl ether

Participants

Reaction Steps

In 870 g of tetrahydrofuran were dissolved 218 g (2 mol) of benzyl alcohol and 224 g (2 mol) of potassium t-butoxide. With stirring at room temperature, 242 g (2 mol) of allyl bromide was added dropwise so that the temperature might not exceed 60° C. At the end of addition, the solution was heated at 60° C. on an oil bath and ripened for one hour at the temperature. The solution was allowed to cool down to room temperature, and 11.2 g (0.1 mol) of potassium t-butoxide was added. With stirring at room temperature, 12.1 g (0.1 mol) of allyl bromide was added dropwise. The solution was heated at 60° C. on an oil bath and ripened for one hour at the temperature. The solution was cooled in an ice bath, and 550 g of water was added. The organic layer was collected. The solvent was distilled off in vacuum, yielding 299 g of a crude end product. The product was used -in the subsequent reaction without further purification.

Provenance & Evidence