Chloropentafluorobenzene → Bis(pentafluorophenyl)diethoxysilane

HRID 856883

Reaktionsgleichung

Reaktionsgleichung von HRID 856883
Cl[C:2]1[C:7]([F:8])=[C:6]([F:9])[C:5]([F:10])=[C:4]([F:11])[C:3]=1[F:12].[Li]C(CC)C.[CH2:18]([O:20][Si:21]([O:34][CH2:35][CH3:36])(Cl)[C:22]1[C:27]([F:28])=[C:26]([F:29])[C:25]([F:30])=[C:24]([F:31])[C:23]=1[F:32])[CH3:19]>CCOCC>[F:8][C:7]1[C:2]([Si:21]([C:22]2[C:23]([F:32])=[C:24]([F:31])[C:25]([F:30])=[C:26]([F:29])[C:27]=2[F:28])([O:34][CH2:35][CH3:36])[O:20][CH2:18][CH3:19])=[C:3]([F:12])[C:4]([F:11])=[C:5]([F:10])[C:6]=1[F:9]

Komponenten

5

Edukt 3

HCID 9579ChloropentafluorobenzeneHCID 21864267DiethoxychloropentafluorophenylsilaneHCID 178418400CID 53628100

Produkt 1

HCID 11102434Bis(pentafluorophenyl)diethoxysilane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3283Diethyl EtherLösungsmittel2×

Reaktionsbedingungen

Temperatur
-70 °C

Versuchsvorschrift

39.52 g (0.195 mol) chloropentafluorobenzene is weighed to a 1000 mL vessel and 250 mL Et2O is added. The vessel is cooled down to −70° C. and 150 mL (0.195 mol) of sec-BuLi (1.3 M) is added dropwise during one hour. The temperature of the solution is kept below −50° C. all the time. The solution is stirred for 30 minutes and 62.54 g (0.195 mol) of diethoxychloropentafluorophenylsilane in Et2O (100 mL) is added in small portions. The solution is stirred for over night allowing it to warm up to room temperature. Formed clear solution is filtered and evaporated to dryness to result di(pentafluorophenyl)diethoxysilane, (C6F5)2Si(OEt)2.

Aufarbeitung

  1. customis kept below −50° C.
  2. stirringThe solution is stirred for over night
  3. temperatureto warm up to room temperature
  4. customFormed clear solution
  5. filtrationis filtered
  6. customevaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-4f127d6749d44c5f894daec6ee1cb876
Quelldatensatz
uspto-grants-2006_12
Patentnummer
US07144827B2

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