Réaction #833515

ord-495f487bedfe4f41ae76334d5dcc0546

Équation de réaction

O=Cc1ccc(O)c(Br)c1
3-Bromo-4-hydroxybenzaldehyde
C=CCBr
allyl bromide
O=C([O-])[O-].[K+].[K+]
potassium carbonate
C=CCOc1ccc(C=O)cc1Br
3-bromo-4-(2-propenyloxy)benzaldehyde

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    TempératureAfter cooling
  2. 2
    Filtrationthe solid was filtered off
  3. 3
    Lavagewashed with acetone
  4. 4
    ConcentrationAfter complete concentration of the organic phase
  5. 5
    Autrethere was obtained an oily residue that
  6. 6
    Autrewas used directly in the second step without further purification

Mode opératoire

3-Bromo-4-hydroxybenzaldehyde (20.1 g, 0.100 mol) and allyl bromide (14.5 g, 0.120 mol) were heated under reflux together with potassium carbonate (20.7 g, 0.150 mol) in 150 ml acetone (abs.) for 8 hours. After cooling, the solid was filtered off and washed with acetone. After complete concentration of the organic phase, there was obtained an oily residue that was used directly in the second step without further purification.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US07393367B2uspto-grants-2008_07