Dichlorodimethylsilane → (Tetramethylcyclopentadienyl)dimethylchlorosilane

HRID 369480Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 369480
O1CCCC1.[CH3:6][C:7]1[CH2:11][C:10]([CH3:12])=[C:9]([CH3:13])[C:8]=1[CH3:14].C([Li])CCC.[Cl:20][Si:21](Cl)([CH3:23])[CH3:22]>CCCCCC>[CH3:6][C:7]1[C:8]([CH3:14])=[C:9]([CH3:13])[C:10]([Si:21]([CH3:23])([CH3:22])[Cl:20])([CH3:12])[CH:11]=1

Komponenten

6

Edukt 4

HCID 6398DichlorodimethylsilaneHCID 8028Tetrahydrofuran2×HCID 1381631,2,3,4-TetramethylcyclopentadieneHCID 178418339Butyllithium

Produkt 1

HCID 131720376(Tetramethylcyclopentadienyl)dimethylchlorosilane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8058HexaneLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

Into a two-necked round-bottomed flask, the atmosphere in which was replaced with nitrogen, were charged 30 g of tetrahydrofuran and 1.10 g of tetramethylcyclopentadiene. The mixture was cooled to 0° C. with stirring and 4.90 ml of n-butyl lithium (1.6M solution in n-hexane) (7.84 mmol as n-butyl lithium) was gradually added dropwise thereto over 20 minutes. The obtained reaction mixture in the form of a white slurry was stirred further for at 0° C. for 3 hours, and added to a pre-cooled mixed solution of tetrahydrofuran (10 g) and n-hexane (10 g) containing 1.01 g (7.84 mmol) of dichlorodimethylsilane in several divided portions over 15 minutes. The mixture was then gradually heated to room temperature.

Aufarbeitung

  1. customInto a two-necked round-bottomed flask, the atmosphere in which was replaced with nitrogen
  2. customThe obtained reaction mixture in the form of a white slurry
  3. stirringwas stirred further for at 0° C. for 3 hours
  4. additionadded to a pre-cooled
  5. customover 15 minutes
  6. temperatureThe mixture was then gradually heated to room temperature

Quellen und Nachweise

ORD-Eintrag
ord-3c29b4d0fca1466db04a7efac37331e3
Quelldatensatz
uspto-grants-2000_10
Patentnummer
US06136995

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