Tetrahydrofuran → (Buta-1,3-dien-2-yl)(trimethoxy)silane

HRID 653541Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 653541
C1COCC1.Cl[CH2:7][C:8]([Si:12]([O:17][CH3:18])([O:15][CH3:16])[O:13][CH3:14])=[CH:9][CH2:10]Cl>[Zn].CCCCC>[CH3:14][O:13][Si:12]([O:15][CH3:16])([O:17][CH3:18])[C:8]([CH:9]=[CH2:10])=[CH2:7]

Komponenten

5

Edukt 2

HCID 8028TetrahydrofuranHCID 544102631,4-Dichloro-2-(trimethoxy)silyl-2-butene

Produkt 1

HCID 13330888(Buta-1,3-dien-2-yl)(trimethoxy)silaneAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23994ZincKatalysatorHCID 8003PentaneLösungsmittel

Versuchsvorschrift

Four grams (41×1.5 mmols) of Zn powder and 15 ml of THF were added, under agitation, to 10 g (41 mmols) of the 1,4-dichloro-2-(trimethoxy)silyl-2-butene obtained by the above procedure. The mixed solution was heated and refluxed for 1 hour and then cooled down to room temperature, followed by adding 30 ml of dried pentane. The resulting ZnCl2 was removed by filtration and the solvent was distilled off under reduced pressure, followed by vacuum distillation to obtain 5.0 g of 2-(trimethoxy) silyl-1,3-butadiene.

Aufarbeitung

  1. customobtained by the above procedure
  2. temperatureThe mixed solution was heated
  3. temperaturerefluxed for 1 hour
  4. customThe resulting ZnCl2 was removed by filtration
  5. distillationthe solvent was distilled off under reduced pressure
  6. distillationfollowed by vacuum distillation

Quellen und Nachweise

ORD-Eintrag
ord-b35915a35cb8400f871bf6c3ee681aa5
Quelldatensatz
uspto-grants-1987_06
Patentnummer
US04677216

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