Dimethylformamide → 1-Bromopropane
Reaction equation
[CH2:1]([Br:4])[CH2:2][CH3:3].[CH2:5]([N:8]([CH2:12][CH2:13][CH3:14])[CH2:9][CH2:10][CH3:11])[CH2:6][CH3:7].[CH3:15][N:16]([CH3:19])[CH:17]=[O:18]>>[CH2:1]([Br:4])[CH2:2][CH3:3].[CH3:15][N:16]([CH3:19])[CH:17]=[O:18].[CH2:5]([N:8]([CH2:12][CH2:13][CH3:14])[CH2:9][CH2:10][CH3:11])[CH2:6][CH3:7]Participants
5
Procedure
135 g (1.09 moles) of propyl bromide and 140 g (0.96 moles) of tripropylamine are heated together with 200 ml of dimethylformamide up to 130° C., in equipment provided with reflux condenser and thermometer, for 6 hours. The end point can be ascertained by the disappearance of the two phases formed from propyl bromide and dimethylformamide/tripropylamine and by the rise in temperature. The resulting solution is cooled and crystals of tetrapropylammonium bromide are precipitated. The crystalline product is filtered and dried.
Workup
- customprovided
- temperaturewith reflux condenser
Sources & evidence
- ORD record
- ord-900d35b61915408587f40ad59108e84f
- Source dataset
- uspto-grants-1990_06
- Patent number
- US04931593
Reaction notes
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