4-Ethynylheptan-4-ol → 2,2,2-trifluoro-N-(2-(3-(3-hydroxy-3-propylhex-1-ynyl)phenylthio)ethyl)acetamide
Reaktionsgleichung
[C:1]([C:3]([OH:10])([CH2:7][CH2:8][CH3:9])[CH2:4][CH2:5][CH3:6])#[CH:2].Br[C:12]1[CH:13]=[C:14]([S:18][CH2:19][CH2:20][NH:21][C:22](=[O:27])[C:23]([F:26])([F:25])[F:24])[CH:15]=[CH:16][CH:17]=1>>[F:26][C:23]([F:24])([F:25])[C:22]([NH:21][CH2:20][CH2:19][S:18][C:14]1[CH:15]=[CH:16][CH:17]=[C:12]([C:2]#[C:1][C:3]([OH:10])([CH2:7][CH2:8][CH3:9])[CH2:4][CH2:5][CH3:6])[CH:13]=1)=[O:27]Komponenten
3
Versuchsvorschrift
Sonogashira coupling of alkynol 20 with N-(2-(3-bromophenylthio)ethyl)-2,2,2-trifluoroacetamide (128) according to the method used in Example 1 followed by flash chromatography (5-50% ethyl acetate/hexanes gradient) gave 2,2,2-trifluoro-N-(2-(3-(3-hydroxy-3-propylhex-1-ynyl)phenylthio)ethyl)acetamide (129) as an orange. Yield (0.22 g, 52%): 1H NMR (400 MHz, DMSO) δ 9.52-9.60 (m, 1H), 7.26-7.36 (m, 3H), 7.16-7.20 (m, 1H), 5.11 (s, 1H), 3.60 (ddd, J=6.4 Hz, 2H), 3.11 (t, J=7.2 Hz, 2H), 1.52-1.62 (m, 4H), 1.38-1.52 (m, 4H), 0.89 (t, J=7.2 Hz, 6H).