Chlorodimethylsilane → Propenylanisole

HRID 129219

Reaktionsgleichung

Reaktionsgleichung von HRID 129219
[CH2:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[O:10][CH3:11])[CH:2]=[CH2:3].C[SiH](C)Cl>[H+].[H+].Cl[Pt-2](Cl)(Cl)(Cl)(Cl)Cl>[CH:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[O:10][CH3:11])=[CH:2][CH3:3]

Komponenten

4

Edukt 2

HCID 66108ChlorodimethylsilaneHCID 971012-Allylanisole

Produkt 1

HCID 3014070Propenylanisole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 61859Chloroplatinic acidKatalysator

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

148 g (1.0 mol) of 2-allylanisole are mixed with 8 mg of hexachloroplatinic acid under a nitrogen atmosphere and heated to 70° C. 114 g (1.2 mol) of dimethylchlorosilane are metered into the mixture over the course of two hours and the mixture is stirred at 70° C. for a further four hours. Excess dimethylchlorosilane is then removed in vacuo and 2-propenylanisole which is formed by isomerization is separated off using a short Vigreux column. 204 g of 3-(2-anisyl)propyldimethylchlorosilane are obtained as a clear liquid having an acid number of 227.

Aufarbeitung

  1. customare metered into the mixture over the course of two hours
  2. customExcess dimethylchlorosilane is then removed in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-f172715bb07448328751663f316b5838
Quelldatensatz
uspto-grants-1995_11
Patentnummer
US05466845

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