Ethanol → HCID 22600129, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:10][C:11]([O:13][CH2:14][CH3:15])=[O:12])[CH:6]=[C:7]([CH3:9])[CH:8]=1.[CH:16](OCC)=[O:17].CCO.O>CCOCC>[O:17]=[CH:16][CH:10]([C:5]1[CH:6]=[C:7]([CH3:9])[CH:8]=[C:3]([O:2][CH3:1])[CH:4]=1)[C:11]([O:13][CH2:14][CH3:15])=[O:12]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a solution of ethyl 3-methoxy-5-methylphenylacetate (3.0 g; 14 mmol; from step (iv) above) and ethyl formate (1.9 g; 26 mmol) in ether (75 mL) was added Na (0.39 g; 17 mmol) in small lumps. The solution was cooled to 0° C. and EtOH (abs.; 0.24 mL) was then added. To the resulting slurry was added ether (100 mL), EtOH (5 mL) and water until the slurry was dissolved. The aqueous phase was collected, acidified to pH 2 (HCl/aq) and extracted with ether. The organic phase was washed with NaHCO3/aq, dried (Na2SO4), and evaporated to yield 2 g (59%) of the sub-title compound.
Workup
- dissolutionwas dissolved
- customThe aqueous phase was collected
- extractionextracted with ether
- washThe organic phase was washed with NaHCO3/aq
- dry with materialdried (Na2SO4)
- customevaporated
Sources & evidence
- ORD record
- ord-78b3fb1463b6449f98aab414f490ad25
- Source dataset
- uspto-grants-2001_07
- Patent number
- US06255301B1
Reaction notes
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