Potassium Hydroxide → potassium (E)-3-(4-hydroxy-3-methoxyphenyl)-2-propenoate
Reaction equation
[OH-].[K+:2].[OH:3][C:4]1[CH:9]=[CH:8][C:7](/[CH:10]=[CH:11]/[C:12]([OH:14])=[O:13])=[CH:6][C:5]=1[O:15][CH3:16]>CO>[OH:3][C:4]1[CH:9]=[CH:8][C:7](/[CH:10]=[CH:11]/[C:12]([O-:14])=[O:13])=[CH:6][C:5]=1[O:15][CH3:16].[K+:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Potassium hydroxide (580 mg, 10.3 mmol) was dissolved in methanol (10 ml) and put in a three-necked flask. Stirring was set on. Subsequently, (E)-3-(4-Hydroxy-3-methoxyphenyl)-2-propenoic acid (2.00 g, 10.3 mmol) in methanol (20 mL) was added to this solution through a funnel. After the addition was ended, the solution was allowed to react at room temperature for 3 h. Methanol was then evaporated off and then yellow solid residue was washed with Et2O and dried under reduced pressure. The product was obtained as a yellowish solid (2.40 g, quantitative yield).
Workup
- customput in a three-necked flask
- additionAfter the addition
- customto react at room temperature for 3 h
- customMethanol was then evaporated off
- washyellow solid residue was washed with Et2O
- customdried under reduced pressure
Sources & evidence
- ORD record
- ord-34cd5312bd9e407caffce1bc1fff34e0
- Source dataset
- uspto-grants-2010_05
- Patent number
- US07723382B2
Reaction notes
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