Ethoxydimethylsilane → Methacryloxyethoxypropyl dimethyl ethoxysilane

HRID 1252533

Reaktionsgleichung

Reaktionsgleichung von HRID 1252533
[C:1]([O:6][CH2:7][CH2:8][O:9][CH2:10][CH:11]=[CH2:12])(=[O:5])[C:2]([CH3:4])=[CH2:3].[CH3:13][SiH:14]([CH3:18])[O:15][CH2:16][CH3:17]>[Pt]>[C:1]([O:6][CH2:7][CH2:8][O:9][CH2:10][CH2:11][CH2:12][Si:14]([CH3:18])([CH3:13])[O:15][CH2:16][CH3:17])(=[O:5])[C:2]([CH3:4])=[CH2:3]

Komponenten

4

Edukt 2

HCID 61772Ethoxydimethylsilane2×HCID 856092-Propenoic acid, 2-methyl-, 2-(2-propen-1-yloxy)ethyl ester

Produkt 1

HCID 53895125Methacryloxyethoxypropyl dimethyl ethoxysilane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 23939PlatinumKatalysator

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

The reaction vessel was a flask equipped with a stirring device, a thermometer, a dropping funnel and fitted with a reflux condenser and a drying tube. The flask charged with about one mole of allyloxyethyl methacrylate and about 1×10-5 moles of a platinum catalyst. The mixture heated to about 50° C. and maintained at 50° C. for 15 minutes. The temperature of the reaction mixture was cooled down to 20° C. with a water bath. When the temperature had reached 20° C., 1.1 moles of dimethylethoxysilane was added to the mixture with the temperature being held at 20° C. during dimethylethoxysilane addition, and stirred for 24 hours. Fractionation of the resulting gave methacryloxyethoxypropyl dimethyl ethoxysilane which had a vacuum boiling point of about 115° C. at 4 mm Hg.

Aufarbeitung

  1. customequipped with a stirring device
  2. customa thermometer, a dropping funnel and fitted with a reflux condenser and a drying tube
  3. temperaturemaintained at 50° C. for 15 minutes
  4. temperatureThe temperature of the reaction mixture was cooled down to 20° C. with a water bath
  5. customhad reached 20° C.

Quellen und Nachweise

ORD-Eintrag
ord-77b69d812a4b4284b3dfb1aca0f0d427
Quelldatensatz
uspto-grants-1988_05
Patentnummer
US04743667

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