反应详情

To a solution of 4-benzyloxybenzoic acid chloride (1.23 g) in methylene chloride (10 ml) was added slowly under ice cooling a solution of optically active 2-octanol (0.59 g), dimethylaminopyridine (0.55 g) and triethylamine (0.48 g) in methylene chloride (20 ml). The mixture was left to stand until it reached room temperature and was left to stand overnight in order to complete the reaction. The solution was poured in ice water and extracted with methylene chloride. The extracted layer was washed with dilute hydrochloric acid, water, 1N aqueous sodium carbonate solution and water, in this order, and dried over anhydrous magnesium sulfate. After the extract was distilled to remove the solvent until a crude product was obtained, the product was purified by toluene-silica gel column chromatography and further recrystallized from ethanol to obtain the titled compound (1.48 g).

1. waitThe mixture was left
2. customreached room temperature
3. waitwas left
4. customthe reaction
5. extractionextracted with methylene chloride
6. washThe extracted layer was washed with dilute hydrochloric acid, water, 1N aqueous sodium carbonate solution and water, in this order
7. dry with materialdried over anhydrous magnesium sulfate
8. distillationAfter the extract was distilled
9. customto remove the solvent until a crude product
10. customwas obtained
11. customthe product was purified by toluene-silica gel column chromatography
12. customfurther recrystallized from ethanol