Reaktionsgleichung
[CH2:1]([O:3][CH:4]([O:6][C:7]1[CH:14]=[CH:13][C:10]([CH:11]=[CH2:12])=[CH:9][CH:8]=1)[CH3:5])[CH3:2].N1C=CC=CC=1>O1CCOCC1>[CH:12]#[C:11][C:10]1[CH:13]=[CH:14][C:7]([OH:6])=[CH:8][CH:9]=1.[CH:1]([O:3][CH2:4][CH3:5])=[CH2:2]Komponenten
5
Edukt 2
Produkt 2
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of poly(p-hydroxystyrene) (4.0 g) obtained in above (2) and ethyl vinyl ether (1.5 g) in a mixed solvent (35 ml) of pyridine and 1,4-dioxane, a catalytic amount of p-toluenesulfonic acid was added and reacted with stirring at room temperature for 24 hours. The reaction mixture was poured into H2O (1 liter) and a white solid was precipitated. The polymer was filtered, washed with H2O and dried under reduced pressure to afford 5.0 g of the desired product as a white powder having Mw 10000 (GPC with polystyrene calibration). The polymer was found to have p-(1-ethoxyethoxy)styrene unit and p-hydroxystyrene unit in a molar ratio of ca. 1:1 based on 1HNMR.
Quellen und Nachweise
- ORD-Eintrag
- ord-7a86754ab09c48a387c1873e3cab3662
- Quelldatensatz
- uspto-grants-1995_11
- Patentnummer
- US05468589
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