Dicyclopentadiene → 5-(2-Bromo-1,1,2,2-tetrafluoroethyl)bicyclo[2.2.1]hept-2-ene

HRID 1071891

Reaktionsgleichung

Reaktionsgleichung von HRID 1071891
[CH2:1]1[CH:5]2[CH:6]3C=CC([CH:4]2C=[CH:2]1)C3.[Br:11][C:12]([F:19])([F:18])[C:13]([F:17])([F:16])[CH:14]=[CH2:15]>C1(C)C=CC=CC=1.COC1C=CC(O)=CC=1>[Br:11][C:12]([F:19])([F:18])[C:13]([F:17])([F:16])[CH:14]1[CH2:4][CH:5]2[CH2:6][CH:15]1[CH:2]=[CH:1]2

Komponenten

5

Edukt 2

HCID 6492DicyclopentadieneHCID 877214-Bromo-3,3,4,4-tetrafluoro-1-butene

Produkt 1

HCID 223899165-(2-Bromo-1,1,2,2-tetrafluoroethyl)bicyclo[2.2.1]hept-2-eneAusbeute 145,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 90154-MethoxyphenolKatalysatorHCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
170 °C

Versuchsvorschrift

An autoclave was charged with 108.5 g of dicyclopentadiene and 322.4 g of 1-bromo-1,1,2,2-tetrafluoro-3-butene. A solution of 0.3 g of 4-methoxyphenol dissolved in 5 ml of toluene was added to the autoclave as a polymerization inhibitor and the mixture was stirred for 5 hours at 170° C. The reaction product was purified by distillation under reduced pressure at 85° C. and 25 mmHg to obtain 326 g of 1-bromo-1,1,2,2-tetrafluoro-2-(norborn-5-en-2-yl)ethane as a clear liquid (hereinafter referred to as “compound (1-a)”).

Aufarbeitung

  1. additionwas added to the autoclave as a polymerization inhibitor
  2. distillationThe reaction product was purified by distillation under reduced pressure at 85° C.

Quellen und Nachweise

ORD-Eintrag
ord-efd253bcdbfc449e9e720224e81bd1cb
Quelldatensatz
uspto-grants-2005_06
Patentnummer
US06908722B2

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