Reaktion #577214

Reaktionsgleichung

m-chlorobenzoic acid

4-allyloxy-4′-cyanobiphenyl

→

4-cyano-4′-glycidylbiphenyl

Ausbeute 68.4%

Lösungsmittel

methylene chloride

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeobtained
2. 2
   SonstigeInsoluble matters thus deposited were removed by filtration, and water
3. 3
   workup.ADDITIONwas added
4. 4
   SonstigeAfter separating the mixture
5. 5
   Waschenthe organic layer was washed with a saturated aqueous solution of sodium hydrosulfite
6. 6
   Trocknendried over anhydrous magnesium sulfate
7. 7
   workup.DISTILLATIONThe solvent was distilled off
8. 8
   Sonstigeto obtain a residue, which
9. 9
   Sonstigewas purified by silica gel column chromatography
10. 10
    Sonstigesubjected to recrystallization from ethanol

Vorschrift

20 g of m-chlorobenzoic acid was added to a reaction mixture obtained by dissolving 19 g of 4-allyloxy-4′-cyanobiphenyl in 150 mL of methylene chloride as divided into several times, and the mixture was stirred at room temperature for 24 hours. Insoluble matters thus deposited were removed by filtration, and water was added thereto. After separating the mixture, the organic layer was washed with a saturated aqueous solution of sodium hydrosulfite and then dried over anhydrous magnesium sulfate. The solvent was distilled off to obtain a residue, which was purified by silica gel column chromatography and then subjected to recrystallization from ethanol to obtain 13 g of 4-cyano-4′-glycidylbiphenyl.

Quelle