Acetic Acid → 1-(2,4-Dihydroxy-5-isobutyl-phenyl)-ethanone
Reaktionsgleichung
[CH2:1]([C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][C:6]=1[OH:12])[CH:2]([CH3:4])[CH3:3].B(F)(F)F.[CH3:17][CH2:18][O:19]CC.C(O)(=O)C.CC([O-])=O.[Na+]>>[OH:11][C:8]1[CH:7]=[C:6]([OH:12])[C:5]([CH2:1][CH:2]([CH3:4])[CH3:3])=[CH:10][C:9]=1[C:18](=[O:19])[CH3:17]Komponenten
5
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
4-Isobutyl-benzene-1,3-diol (1 eq) was taken up in BF3.OEt2 (6 eq) and acetic acid (2 eq) was added. The solution was heated for 16 hours at 90° C. than allowed to cool to room temperature. The solution was added drop wise to 10% NaOAc (aq) and allowed to stand for 4 hours, before being extracted twice with diethyl ether. The organic phases were combined and washed with sat. NaHCO3 (aq), then dried over magnesium sulfate, filtered and concentrated in vacuo to give 1-(2,4-dihydroxy-5-isobutyl-phenyl)-ethanone, which was used without additional purification.