Water → HCID 18626122, compound
Reaction equation
C[O:2][C:3](=[O:19])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[C:6]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH:5]=1.O>CO.[OH-].[K+]>[O:12]([C:6]1[CH:5]=[C:4]([CH:9]=[CH:8][C:7]=1[O:10][CH3:11])[C:3]([OH:19])=[O:2])[C:13]1[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
3-Phenoxy-4-methoxybenzoic acid methyl ester (0.8 g, 3.1 mmol) was stirred in a mixture of methanol (8 mL) and 4N potassium hydroxide (10 mL) and heated to reflux. After 2 hours, the mixture was stirred into water (60 mL) and extracted with ether (25 mL). The aqueous solution was stirred and acidified with 4N HCl, and the resulting precipitate was filtered off, rinsed with water, and dried to afford the product (0.7 g); m.p. 186-187° C.
Workup
- temperatureheated to reflux
- extractionextracted with ether (25 mL)
- filtrationthe resulting precipitate was filtered off
- washrinsed with water
- customdried
Sources & evidence
- ORD record
- ord-810e77e793e24c98a268546f1192ac35
- Source dataset
- uspto-grants-2001_07
- Patent number
- US06268387B1
Reaction notes
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