反应详情

温度

0 °C

A stirred mixture of 2-(2-naphthalenyloxy)ethanamine (4.9 g) in dichloromethane (25 mL) and triethylamine (5 mL) was chilled to 0° C. and treated with the acid chloride prepared from 4-acetyl benzoic acid (4.3 g) and then the mixture was stirred at room temperature for 10 minutes. The mixture was diluted with water and acidified with excess 2N hydrochloric acid, extracted with dichloromethane and the organic layer was washed in turn with sodium bicarbonate solution and saturated sodium chloride solution. The organic layer was dried (Na2SO4), filtered, and evaporated to give crude material which was purified by HPLC (ethyl acetate-dichloromethane; 1:9) and crystallized from ethyl acetate to provide 4.7 g of 4-acetyl-N-[2-(2-naphthalenyloxy)ethyl]benzamide as a colorless solid, mp 131°-132° C.

1. extractionextracted with dichloromethane
2. washthe organic layer was washed in turn with sodium bicarbonate solution and saturated sodium chloride solution
3. dry with materialThe organic layer was dried (Na2SO4)
4. filtrationfiltered
5. customevaporated
6. customto give crude material which
7. customwas purified by HPLC (ethyl acetate-dichloromethane; 1:9)
8. customcrystallized from ethyl acetate