Br[CH:2]([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:3]([O:5][CH2:6][CH3:7])=[O:4].CCN(C(C)C)C(C)C.[NH:23]1[CH2:28][CH2:27][S:26][CH2:25][CH2:24]1>C(#N)C>[C:8]1([CH:2]([N:23]2[CH2:28][CH2:27][S:26][CH2:25][CH2:24]2)[C:3]([O:5][CH2:6][CH3:7])=[O:4])[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1Ethyl 2-bromo-2-phenylacetate (0.22 ml, 1.23 mmol) was dissolved in acetonitrile (4.0 ml). DIPEA (0.26 ml, 1.481 mmol) and thiomorpholine (0.15 ml, 1.41 mmol) were sequentially added and the solution was stirred at room temperature for 1.5 hours. Acetonitrile was evaporated and the residue was purified by flash chromatography (petroleum ether/EtOAc=95/5) to obtain ethyl 2-phenyl-2-thiomorpholinoacetate (362 mg, quantitative yield) as a colorless oil.
読み込み中…