1,1'-(4-Bromobut-1-ene-1,1-diyl)bis(4-methoxybenzene) → HCID 13883276, Verbindung
Reaktionsgleichung
[Br:1][CH2:2][CH2:3][CH:4]=[C:5]([C:14]1[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=1)[C:6]1[CH:11]=[CH:10][C:9]([O:12][CH3:13])=[CH:8][CH:7]=1>C(O)C.[Pd]>[Br:1][CH2:2][CH2:3][CH2:4][CH:5]([C:14]1[CH:15]=[CH:16][C:17]([O:20][CH3:21])=[CH:18][CH:19]=1)[C:6]1[CH:11]=[CH:10][C:9]([O:12][CH3:13])=[CH:8][CH:7]=1Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
44 g (0.127 mol) of 4-bromo-1,1-bis(4-methoxyphenyl)-butene were dissolved in 160 ml of ethanol, 2.8 g of palladium-on-charcoal (10%) were added and hydrogenation was carried out in a shaking vessel at room temperature in the course of about 2 hours. The catalyst was then filtered off with suction, the filtrate was concentrated and the crude product was purified by fractional distillation. 34.4 g of a fraction were obtained at 220°-226° C./-0.2 mm.