Hydrochloric Acid → Methyl 2-(benzamido)-4-(phenethyloxy)benzoate
Reaction equation
C(=O)([O-])[O-].[K+].[K+].Br[CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.[C:16]([NH:24][C:25]1[CH:34]=[C:33]([OH:35])[CH:32]=[CH:31][C:26]=1[C:27]([O:29][CH3:30])=[O:28])(=[O:23])[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.Cl>C(OCC)(=O)C>[C:16]([NH:24][C:25]1[CH:34]=[C:33]([O:35][CH2:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[CH:32]=[CH:31][C:26]=1[C:27]([O:29][CH3:30])=[O:28])(=[O:23])[C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1Participants
Procedure
0.13 g of potassium carbonate and 0.10 mL of (2-bromoethyl)benzene were added to 2 mL of N-dimethylformamide solution containing 0.13 g of methyl 2-(benzamido)-4-hydroxybenzoate, and stirred at room temperature for 3 hours. 0.10 mL of (2-bromoethyl)benzene was added to the reaction mixture and stirred at 50° C. for 4 hours and at 80° C. for 3 hours. After the reaction mixture was cooled to room temperature, 0.10 g of potassium carbonate and 0.10 mL of (2-bromoethyl)benzene were added and stirred at 80° C. for 2 hours and 30 minutes. After the reaction mixture was cooled to room temperature, ethyl acetate and 1.0 mol/b hydrochloric acid were added. The organic layer was separated and dried over anhydrous magnesium sulfate after washed with a saturated sodium chloride aqueous solution, and the solvent was evaporated under reduced pressure. The obtained residue was purified with silica gel column chromatography [eluent; hexane:ethyl acetate=8:1] to obtain 0.13 g of methyl 2-(benzamido)-4-(phenethyloxy)benzoate as colorless oil.
Workup
- stirringstirred at 50° C. for 4 hours and at 80° C. for 3 hours
- temperatureAfter the reaction mixture was cooled to room temperature
- stirringstirred at 80° C. for 2 hours and 30 minutes
- temperatureAfter the reaction mixture was cooled to room temperature
- customThe organic layer was separated
- dry with materialdried over anhydrous magnesium sulfate
- washafter washed with a saturated sodium chloride aqueous solution
- customthe solvent was evaporated under reduced pressure
- customThe obtained residue was purified with silica gel column chromatography [eluent; hexane:ethyl acetate=8:1]
Sources & evidence
- ORD record
- ord-3ac770ee492a44679aadcbaa7d369e05
- Source dataset
- uspto-grants-2011_08
- Patent number
- US07999132B2
Reaction notes
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