Reaction #833512

Reaction equation

Ethyl vanillin

allyl bromide

potassium carbonate

→

3-ethoxy-4-(2-propenyloxy)benzaldehyde

Solvents

acetone

Conditions

Workup

1. 1
   TemperatureAfter cooling
2. 2
   Filtrationthe solid was filtered off
3. 3
   Washwashed with acetone
4. 4
   OtherA yellow oil was obtained
5. 5
   Concentrationafter a thorough concentration of the organic phases

Procedure

Ethyl vanillin (21.6 g, 0.130 mol) and allyl bromide (19.9 g, 0.160 mol) were heated under reflux together with potassium carbonate (27.3 g, 0.200 mol) in 150 ml acetone (abs.) for 8 hours. After cooling, the solid was filtered off and washed with acetone. A yellow oil was obtained after a thorough concentration of the organic phases.

Source