Reaktion #2171037

ord-432ff21c4ec44296b24103780a81f382

Reaktionsgleichung

BrBr
bromine
c1ccc(P(c2ccccc2)c2ccccc2)cc1
triphenylphosphine
CC[C@H]1CC[C@H](C2CCC(O)CC2)CC1
4-(trans-4-ethyl-cyclohexyl)cyclohexanol
CCC1CCC(C2CCC(Br)CC2)CC1
4′-bromo-4-ethylbicyclohexane

Lösungsmittel

Reaktionsbedingungen

Temperatur
5°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    workup.STIRRINGthe mixture is stirred at RT for 24 hours

Vorschrift

102 ml of bromine are added dropwise over the course of 2 hours at 5-15° C. to 536 g of triphenylphosphine in 2000 ml of acetonitrile, the mixture is subsequently stirred at 5° C. for 1 hour, 422 g of 4-(trans-4-ethyl-cyclohexyl)cyclohexanol are added, and the mixture is stirred at RT for 24 hours. Conventional work-up gives 4′-bromo-4-ethylbicyclohexane, GC 94.7%.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06716491B2uspto-grants-2004_04