Benzyl Bromide → HCID 11322245, Verbindung
Reaktionsgleichung
Cl.[NH:2]1[CH2:7][CH2:6][CH2:5][CH2:4][CH:3]1[CH2:8][CH2:9][CH2:10][OH:11].C([O-])([O-])=O.[K+].[K+].[CH2:18](Br)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>C(O)C>[CH2:18]([N:2]1[CH2:7][CH2:6][CH2:5][CH2:4][CH:3]1[CH2:8][CH2:9][CH2:10][OH:11])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a stirred solution of compound 21 (3 g, 16.71 mmol) in ethanol (23 mL) was added K2CO3 (11.5 g, 83.55 mmol) portion-wise at ice cold conditions. Benzyl bromide (2 mL, 16.71 mmol) was then added and the reaction mixture was heated at reflux for 2 hours. The reaction mixture was filtered, and washed with EtOAc. The filtrate was concentrated, the residue was dissolved in EtOAc, washed with saturated NaHCO3 solution and brine, dried over Na2SO4, filtered and concentrated. The crude material was purified by 230-400 silica gel column chromatography using 1-3% MeOH-DCM as eluent to yield compound 22.