Reaktion #3121

Reaktionsgleichung

4-hydroxybenzaldehyde

1,3-dibromopropane

→

product

Ausbeute 76.0%

1,3-bis(4-formyl-phenoxy)propane

Ausbeute 76.0%

Lösungsmittel

potassium carbonate

DMF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturunder reflux
2. 2
   workup.ADDITIONThe reaction mixture was poured
3. 3
   workup.DISTILLATIONinto cold distilled water
4. 4
   Sonstigeto obtain a precipitate
5. 5
   FiltrationAfter filtration and vacuum
6. 6
   Sonstigedrying the precipitate
7. 7
   Sonstigethe resultant was recrystallized in ethanol
8. 8
   Sonstigeto obtain the white product (XII-1)

Vorschrift

10.0 g of 4-hydroxybenzaldehyde and 8.3 g of 1,3-dibromopropane were reacted for 24 hours in 6.2 g of potassium carbonate solution in 100 ml of DMF under reflux. The reaction mixture was poured into cold distilled water to obtain a precipitate. After filtration and vacuum drying the precipitate, the resultant was recrystallized in ethanol to obtain the white product (XII-1). The product yield was 76%.

Quelle