Thionyl Chloride → 1-(2,2,2-Trifluoroethoxy)-2-naphthoyl Chloride
Reaktionsgleichung
[F:1][C:2]([F:19])([F:18])[CH2:3][O:4][C:5]1[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][C:6]=1[C:15](O)=[O:16].S(Cl)([Cl:22])=O>CN(C)C=O>[F:1][C:2]([F:19])([F:18])[CH2:3][O:4][C:5]1[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][C:6]=1[C:15]([Cl:22])=[O:16]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 10 g. (37 mmoles) of 1-(2,2,2-trifluoroethoxy)-2-naphthoic acid, 21.8 ml. (35.7 g., 300 mmoles) of purified thionyl chloride and 3 drops of dimethylformamide is refluxed for one hour. Excess thionyl chloride is removed in vacuo at water aspirator pressure while heating on a steam bath. Last traces of thionyl chloride are removed by vacuum distillation with added benzene. The product is 1-(2,2,2-trifluoroethoxy)-2-naphthoyl chloride according to infrared spectral measurement.