反应详情

A reaction vessel was charged with 25.5 g of hydroquinone monobenzyl ether, 17.9 g of benzoyl chloride, 0.50 g of tetrabutylammonium bromide and 100 ml of toluene, to which 78.6 g of 10% potassium hydroxide solution was slowly added dropwise, while stirring under ice cooling. After 24 hours, the reaction mixture was made weakly acidic by the addition of 20% hydrochloric acid, and the deposited crystals were collected by filtration. The crystals thus obtained were successively washed with 10% hydrochloric acid and water, and dried, which afforded 38 g of 4-benzyloxyphenyl benzoate (98% yield).

1. additionwas slowly added dropwise
2. filtrationthe deposited crystals were collected by filtration
3. customThe crystals thus obtained
4. washwere successively washed with 10% hydrochloric acid and water
5. customdried