Methanol → 1-(2-Methoxypiperidin-1-yl)ethan-1-one
Reaktionsgleichung
[C:1]([N:4]1[CH2:9][CH2:8][CH2:7][CH2:6][CH2:5]1)(=[O:3])[CH3:2].[CH3:10][OH:11]>F[P-](F)(F)(F)(F)F.C([N+](CCC)(CCC)CCC)CC>[C:1]([N:4]1[CH2:9][CH2:8][CH2:7][CH2:6][CH:5]1[O:11][CH3:10])(=[O:3])[CH3:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
In the same manner as indicated in Example 6 there are electrolyzed 21.6 g of N-acetylpiperidine and 54.4 g of methanol in the presence of 0.56 g of tetra-n-propylammonium hexafluorophosphate as conducting salt. After throughput of 2.0 Faraday per mol of N-acetylpiperidine the current is switched off. The calculated mean cell voltage is 28.7 volts. Work-up of the electrolysis solution by molecular distillation gives 21.5 g of 1-acetyl-2-methoxypiperidine, which corresponds to a product yield of 80.5% and a current efficiency of 80.5%.