Sodium Hydroxide → 2-[4-{N-(4-chlorophenyl)-N-methylaminomethyl}phenoxy]-2-methylpropionic acid
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([CH2:10][C:11]2[CH:25]=[CH:24][C:14]([O:15][C:16]([CH3:23])([CH3:22])[C:17]([O:19]CC)=[O:18])=[CH:13][CH:12]=2)[CH3:9])=[CH:4][CH:3]=1.[OH-].[Na+]>C(O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]([CH2:10][C:11]2[CH:12]=[CH:13][C:14]([O:15][C:16]([CH3:22])([CH3:23])[C:17]([OH:19])=[O:18])=[CH:24][CH:25]=2)[CH3:9])=[CH:6][CH:7]=1Participants
4
Procedure
In 20 ml of ethanol is dissolved 1.2 g of ethyl 2-[4-{N-(4-chlorophenyl)-N-methylaminomethyl}phenoxy]-2-methylpropionate. Subsequently, 15 ml of 1 N aqueous solution of sodium hydroxide is added to the solution, and the mixture is stirred at room temperature for 4 hours. After distilling off the ethanol from the reaction mixture under reduced pressure, the residue is dissolved in water. The solution is adjusted to pH 4 with 10% hydrochloric acid, and the precipitated crystals are collected by filtration and dried to give 0.94 g of 2-[4-{N-(4-chlorophenyl)-N-methylaminomethyl}phenoxy]-2-methylpropionic acid, mp 63° to 65° C.
Workup
- distillationAfter distilling off the ethanol from the reaction mixture under reduced pressure
- dissolutionthe residue is dissolved in water
- filtrationthe precipitated crystals are collected by filtration
- customdried
Sources & evidence
- ORD record
- ord-e9885f5d0869494db556ad50fa0b5b4e
- Source dataset
- uspto-grants-1980_07
- Patent number
- US04214094
Reaction notes
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