Pyridine → 2-((Trimethylsilyl)oxy)ethyl methacrylate

Reaktionsgleichung

[C:1]([O:6][CH2:7][CH2:8][OH:9])(=[O:5])[C:2]([CH3:4])=[CH2:3].N1C=CC=CC=1.[CH3:16][Si:17]([CH3:20])([CH3:19])Cl>C(Cl)(Cl)(Cl)Cl>[C:1]([O:6][CH2:7][CH2:8][O:9][Si:17]([CH3:20])([CH3:19])[CH3:16])(=[O:5])[C:2]([CH3:4])=[CH2:3]

Komponenten

Versuchsvorschrift

In a three-neck flask having a capacity of 500 ml, 26 g (0.2 moles) of 2-hydroxyethyl methacrylate (abbreviated to HEMA) and 16 g of pyridine were dissolved in 200 ml of carbon tetrachloride. At room temperature, 107.5 g (0.2 moles) of trimethylchlorosilane was slowly dropped into the solution in the flask to complete the addition of the entire amount in 30 min. During this process precipitation of hydrochloric acid salt of pyridine took place. After filtration, carbon tetrachloride in the reaction liquid was distilled out by using an evaporater, and the remaining liquid was distilled under reduced pressure to obtain 37 g of 2-trimethylsiloxyethyl methacrylate (abbreviated to HEMA-Si).