Reaktion #74967

Reaktionsgleichung

benzoquinone

1,2,3,4,5,5-hexabromo-1,3-cyclopentadiene

→

1,2,3,4,9,9-hexabromo-1,4-dihydro-1,4-methanonaphthalene-5,8-diol

Lösungsmittel

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturto reflux temperature
2. 2
   Temperaturrefluxed for four hours
3. 3
   SonstigeAt the end of this reaction period a dark solid
4. 4
   Sonstigehad formed
5. 5
   Waschenwashed with Skelly B solvent
6. 6
   SonstigeThe solid was then recrystallized from benzene
7. 7
   Sonstigewhite crystals were obtained

Vorschrift

A mixture of benzoquinone, 10.8 g. toluene (40 ml) and 1,2,3,4,5,5-hexabromo-1,3-cyclopentadiene (60 g.) was heated to reflux temperature and refluxed for four hours. At the end of this reaction period a dark solid had formed. This solid was placed on a Buchner funnel and washed with Skelly B solvent and a small amount of methanol. The solid was then recrystallized from benzene and white crystals were obtained, m.p. 204°-206° C.

Quelle