Hydrogen Bromide → HCID 14938892, Verbindung

HRID 3688Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 3688
[CH3:1][C:2]1[S:3][C:4]([Si](C)(C)C)=[CH:5][C:6]=1[C:7]1[C:11]([F:13])([F:12])[C:10]([F:15])([F:14])[C:9]([F:17])([F:16])[C:8]=1[C:18]1[CH:22]=[C:21]([Si](C)(C)C)[S:20][C:19]=1[CH3:27].Br>C(Cl)(Cl)Cl>[CH3:27][C:19]1[S:20][CH:21]=[CH:22][C:18]=1[C:8]1[C:9]([F:16])([F:17])[C:10]([F:14])([F:15])[C:11]([F:13])([F:12])[C:7]=1[C:6]1[CH:5]=[CH:4][S:3][C:2]=1[CH3:1]

Komponenten

4

Edukt 2

HCID 260Hydrogen BromideHCID 149388931,2-Bis(2-methyl-5-trimethylsilyl-3-thienyl)hexafluorocyclopentene

Produkt 1

HCID 14938892HCID 14938892, VerbindungAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Versuchsvorschrift

1,2-bis(2-methyl-5-trimethylsilyl-3-thienyl)hexafluorocyclopentene (2.16 g, 0.005 mol) was dissolved in chloroform (200 ml) and was allowed to react for 6 hours under refluxing conditions by adding concentrated hydrobromic acid (10 ml) to the solution. After the completion of the reaction, the chloroform layer was washed with an aqueous solution of sodium bicarbonate and the chloroform was removed under reduced pressures. The reaction product was purified by silicagel column chromatogram to give 1,2-bis(2-methyl-3-thienyl)hexafluorocyclopentene (1.8 g, 0.0049 mol).

Aufarbeitung

  1. customto react for 6 hours under refluxing conditions
  2. customAfter the completion of the reaction
  3. washthe chloroform layer was washed with an aqueous solution of sodium bicarbonate
  4. customthe chloroform was removed under reduced pressures
  5. customThe reaction product was purified by silicagel column chromatogram

Quellen und Nachweise

ORD-Eintrag
ord-24790d511c784f0cb5c8390c2b1741e2
Quelldatensatz
uspto-grants-1998_03
Patentnummer
US05734065

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