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Potassium cyclooctadienide → (Tetramethylcyclopentadienyl)dimethylsilyl(cyclooctadiene)

HRID 399293
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 399293
[C-]1CCCCC=CC=1.[K+].CC1C(C)=C(C)C([Si](Cl)(C)C)(C)C=1.[CH3:23][C:24]1[C:25]([CH3:42])=[C:26]([CH3:41])[C:27]([Si:30]([CH:33]2[CH:40]=[CH:39][CH2:38][CH2:37][CH2:36][CH:35]=[CH:34]2)([CH3:32])[CH3:31])([CH3:29])[CH:28]=1.CC1C(C)=C(C)C([Si](C2CCCC=CC=C2)(C)C)(C)C=1>C1COCC1>[CH3:23][C:24]1[C:25]([CH3:42])=[C:26]([CH3:41])[C:27]([Si:30]([C:33]2[CH2:40][CH2:39][CH2:38][CH2:37][CH:36]=[CH:35][CH:34]=2)([CH3:32])[CH3:31])([CH3:29])[CH:28]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 86753202Potassium cyclooctadienideHCID 131720376(Tetramethylcyclopentadienyl)dimethylchlorosilaneHCID 131720867(Tetramethylcyclopentadienyl)(cylcoocta-2,7-dien-1-yl)dimethylsilaneHCID 131720868(Tetramethylcyclopentadienyl)(cylcoocta-2,4-dien-1-yl)dimethylsilane

Produkt 1

HCID 131720866(Tetramethylcyclopentadienyl)dimethylsilyl(cyclooctadiene)

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

Potassium cyclooctadienide (3.42 g, 23.4 mmols) dissolved in about 50 mL of THF was added to a solution of (tetramethylcyclopentadienyl)chloro-dimethylsilane (5.02 g, 23.4 mmols) in about 80 mL of THF at about 25° C. A precipitate formed and the reaction mixture was stirred for about 16 hours at about 25° C., after which time the reaction mixture was filtered and the solvents removed under reduced pressure. The residue was extracted with hexane and filtered. The solvents were again removed under reduced pressure leaving the desired isomeric product comprising (tetramethylcyclopentadienyl)(cylcoocta-2,7-dien-1-yl)dimethylsilane and (tetramethylcyclopentadienyl)(cylcoocta-2,4-dien-1-yl)dimethylsilane.

Aufarbeitung

  1. customA precipitate formed
  2. filtrationafter which time the reaction mixture was filtered
  3. customthe solvents removed under reduced pressure
  4. extractionThe residue was extracted with hexane
  5. filtrationfiltered
  6. customThe solvents were again removed under reduced pressure
  7. customleaving the desired isomeric product

Quellen und Nachweise

ORD-Eintrag
ord-16b990876e75442d94fcff68c8b17887
Quelldatensatz
uspto-grants-1998_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05817849

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