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

HRID 653542Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 653542
Cl[Si:2](Cl)(Cl)[C:3]([CH:5]=[CH2:6])=[CH2:4].C1[CH2:13][O:12]CC1.[CH3:14][OH:15].CC[O:18][CH2:19]C>N(CC)(CC)CC>[CH3:14][O:15][Si:2]([O:12][CH3:13])([O:18][CH3:19])[C:3]([CH:5]=[CH2:6])=[CH2:4]

Komponenten

6

Edukt 4

HCID 887MethanolHCID 3283Diethyl EtherHCID 8028TetrahydrofuranHCID 133308912-Trichlorosilyl-1,3-butadiene

Produkt 1

HCID 13330888(Buta-1,3-dien-2-yl)(trimethoxy)silaneAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8471TriethylamineKatalysator

Reaktionsbedingungen

Temperatur
-10 °C

Versuchsvorschrift

A mixture of 8.7 g (46 mmols of crude product) of 2-(trichloro)silyl-1,3-butadiene and 10 ml of THF was cooled down to -10° C., into which was gently dropped a mixture of 8.3 ml (46×31.5 mmols) of CH3OH and 28.9 ml (46×3×1.5 mmols) of (C2H5)3N while agitating. Thereafter, the mixture was agitated at room temperature for further 30 minutes, followed by adding 30 ml of (C2H5)2O. The resulting (C2H5)3N.HCl was removed by filtration and the solvent was distilled off under reduced pressure, followed by vacuum distillation to obtain 6.1 g of 2-(trimethoxy)silyl-1,3-butadiene. Yield: 75%.

Aufarbeitung

  1. additionwas gently dropped
  2. stirringThereafter, the mixture was agitated at room temperature for further 30 minutes
  3. customThe resulting (C2H5)3N.HCl was removed by filtration
  4. distillationthe solvent was distilled off under reduced pressure
  5. distillationfollowed by vacuum distillation

Quellen und Nachweise

ORD-Eintrag
ord-ee7f42dd792843cc9dc4ab28731ac5e0
Quelldatensatz
uspto-grants-1987_06
Patentnummer
US04677216

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