Bromine → Acenaphthene
Reaktionsgleichung
Br[C:2]1[C:12]2=[C:13]3[C:8](=[CH:9][CH:10]=[CH:11]2)[CH:7]=[CH:6][CH:5]=[C:4]3[CH:3]=1.BrBr>>[CH2:3]1[C:4]2=[C:13]3[C:8](=[CH:7][CH:6]=[CH:5]2)[CH:9]=[CH:10][CH:11]=[C:12]3[CH2:2]1Komponenten
3
Versuchsvorschrift
After the reaction solution was cooled, separated potassium bromide was removed by filtration, methanol was distilled, washed 3 times with water, and the benzene solution was concentrated and dropwise added into cold acetone (0°~-10° C.), to obtain reprecipitate of 140 g of condensed bromoacenaphthylene. Elemental analysis showed that the composition of the condensate corresponded to (C12H4.4 Br2.7)m and the yield from acenaphthene was 76.8%.
Aufarbeitung
- temperatureAfter the reaction solution was cooled
- customseparated potassium bromide
- customwas removed by filtration, methanol
- distillationwas distilled
- washwashed 3 times with water
- concentrationthe benzene solution was concentrated
- additiondropwise added into cold acetone (0°~-10° C.)
- customto obtain
Quellen und Nachweise
- ORD-Eintrag
- ord-07350e11e178470888e21a6234197726
- Quelldatensatz
- uspto-grants-1988_03
- Patentnummer
- US04731493
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