4-Hydroxybenzaldehyde → 4-[(3-Chlorophenyl)methoxy]benzaldehyde
Reaction equation
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+].[Cl:18][C:19]1[CH:20]=[C:21]([CH:24]=[CH:25][CH:26]=1)[CH2:22]Cl>O.C(O)C>[Cl:18][C:19]1[CH:20]=[C:21]([CH:24]=[CH:25][CH:26]=1)[CH2:22][O:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1Participants
7
Procedure
The starting material is prepared as follows: To the stirring mixture of 244 g of p-hydroxybenzaldehyde, 360 g of potassium carbonate, 32 g of potassium iodide, 1.2 lt of 95% aqueous ethanol and 160 ml of water is added slowly 367 g of m-chlorobenzyl chloride. The mixture is stirred at reflux for four hours, cooled to 80° and 2 lt of warm water are added while stirring. The mixture is cooled, the precipitate collected, washed with water and recrystallized from methanol, to afford the 4-(3-chlorobenzyloxy)-benzaldehyde melting at 51°-54°.
Workup
- customThe starting material is prepared
- temperatureat reflux for four hours
- temperaturecooled to 80°
- stirringwhile stirring
- temperatureThe mixture is cooled
- customthe precipitate collected
- washwashed with water
- customrecrystallized from methanol
Sources & evidence
- ORD record
- ord-7c76cb8eaf9242d0b57d336c93738823
- Source dataset
- uspto-grants-1982_05
- Patent number
- US04329367
Reaction notes
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