反应详情

239 mg of 3-difluoromethoxy-N-[2-(4-hydroxy-3-methoxyphenyl)ethyl]-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide (0.572 mmol), 128 mg (1.72 mmol) of 3-chloropropyne, 3 ml of anhydrous N,N-dimethylformamide and 20 mg (0.50 mmol) of 60% sodium hydride were mixed and stirred at room temperature for 4 hours. Water was added to the reaction mixture, which was followed by extracted with ethyl acetate, washed with 5% hydrochrolic acid, saturated aqueous sodium bicarbonate solution and saturated brine subsequently, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 225 mg of 3-difluoromethoxy-N-[2-{3-methoxy-4-(2-propynyloxy)phenyl}ethyl]-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide (the present compound 1268).

1. extractionby extracted with ethyl acetate
2. washwashed with 5% hydrochrolic acid, saturated aqueous sodium bicarbonate solution and saturated brine subsequently
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure