反应详情

180 mg of N-(4-tert-butyldimethylsilyloxybenzyl)-N-(4-cyanophenyl)-2-thiophenecarboxamide was dissolved in 3.5 ml of tetrahydrofuran, and 386 mg of tetrabutylammonium fluoride was added thereto under cooling with ice, followed by stirring at room temperature for 4 hours. After the reaction mixture was poured into a saturated aqueous solution of sodium chloride, the product was extracted with diethyl ether. After the extract was dried over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure. The resulting crude product was purified by TLC (using a 19:1 mixture of chloroform and methanol as the developing solvent) to obtain 47 mg of N-(4-cyanophenyl)-N-(4-hydroxybenzyl)-2-thiophenecarboxamide.

1. temperatureunder cooling with ice
2. extractionthe product was extracted with diethyl ether
3. dry with materialAfter the extract was dried over anhydrous magnesium sulfate
4. distillationthe solvent was distilled off under reduced pressure
5. customThe resulting crude product was purified by TLC (
6. additiona 19:1 mixture of chloroform and methanol as the developing solvent)