Tributylamine → 1,5-Divinyl-1,1,5,5-tetramethyl-3,3-dichlorotrisiloxane
Reaktionsgleichung
C([Si](C)(C)[O:4][Si:5]([CH:8]=[CH2:9])([CH3:7])[CH3:6])=C.[Cl:12][Si:13]([Cl:16])(Cl)Cl.C(N(CC[CH2:28][CH3:29])CCCC)CCC>C(Cl)Cl>[CH:28]([Si:5]([CH3:7])([CH3:6])[O:4][Si:13]([Cl:16])([Cl:12])[O:4][Si:5]([CH:8]=[CH2:9])([CH3:6])[CH3:7])=[CH2:29]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
About 1 ml of a 25% solution of phosphonitrile chloride in methylene chloride is added to a mixture containing 278 g (1.5 mol) of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane and 85 g (0.5 mol) of tetrachlorosilane. After the mixture has been stirred at room temperature for 116 hours, 1.1 ml of tri-n-butylamine are added, and the reaction mixture stirred for an additional 30 minutes and then subsequently fractionally distilled. At 45° to 52° C. and at 3 mbar, 85 g of 1,5-divinyl-1,1,5,5-tetramethyl-3,3-dichlorotrisiloxane are obtained, but no 1,5-divinyl-1,1,5,5-tetramethyl-3-chloro-3-vinyldimethylsiloxytrisiloxane.