Bromopentafluorobenzene → HCID 178505971, Verbindung

HRID 366280

Reaktionsgleichung

Reaktionsgleichung von HRID 366280
C([Mg:4][Br:5])(C)C.Cl[C:7]1[C:12]([F:13])=[C:11]([F:14])[C:10]([F:15])=[C:9]([F:16])[C:8]=1[F:17].BrC1C(F)=C(F)C(F)=C(F)C=1F>C(OCC)C>[C:7]1([Mg:4][Br:5])[C:12]([F:13])=[C:11]([F:14])[C:10]([F:15])=[C:9]([F:16])[C:8]=1[F:17]

Komponenten

5

Edukt 3

HCID 9578Bromopentafluorobenzene2×HCID 9579Chloropentafluorobenzene2×HCID 178418365HCID 178418365, Verbindung4×

Produkt 1

HCID 178505971HCID 178505971, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3283Diethyl EtherLösungsmittel

Versuchsvorschrift

To a diethyl ether solution of isopropyl magnesium bromide, chloropentafluorobenzene is added at 0° C. to 40° C. under nitrogen with stirring in a period of thirty minutes, such that the isopropyl magnesium bromide is in 1.03 to 1.05 molar excess of the chloropentafluorobenzene. The mixture is stirred at 47° C. to 53° C.; after 5 to 10 hours, bromopentafluorobenzene is added to react with the excess isopropyl magnesium bromide, and the mixture is stirred at 25° C. for 1 hour. Any excess bromopentafluorobenzene is back-titrated in situ with isopropyl magnesium bromide to form more C6F5MgBr. The yield of C6F5MgBr is 96.1%, and 3.9% C6F5C1 remained, as determined by 19F NMR, using C6H5CF3 as a reference; no trace of iPrMgBr was seen with 1H NMR.

Aufarbeitung

  1. stirringthe mixture is stirred at 25° C. for 1 hour

Quellen und Nachweise

ORD-Eintrag
ord-59893ca8f471490d9b159cb2b5e1c4a3
Quelldatensatz
uspto-grants-2000_10
Patentnummer
US06129863

Verknüpfte Notizen

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