Ethanol → HCID 9947152, compound
Reaction equation
[CH2:1](N(C1C(C)=CC2C(C)CCC(C)(C)C=2C=1)C1C=CC(C(OCC)=O)=CC=1)C.C([N:31]([C:43]1[C:52]([CH3:53])=[CH:51][C:50]2[C:49]([CH3:55])([CH3:54])[CH2:48][CH:47]=[C:46]([CH3:56])[C:45]=2[CH:44]=1)[C:32]1[CH:42]=[CH:41][C:35]([C:36]([O:38][CH2:39][CH3:40])=[O:37])=[CH:34][CH:33]=1)C.C(O)C.[OH-].[K+]>O>[CH2:56]([C:46]1[C:45]2[CH:44]=[C:43]([NH:31][C:32]3[CH:33]=[CH:34][C:35]([C:36]([O:38][CH2:39][CH3:40])=[O:37])=[CH:41][CH:42]=3)[C:52]([CH3:53])=[CH:51][C:50]=2[C:49]([CH3:54])([CH3:55])[CH2:48][CH:47]=1)[CH3:1]Participants
6
Conditions
- Temperature
- 60 °C
Procedure
General Procedure E To a solution of ethyl 4-[ethyl(3,5,8,8-tetramethyl-5,6-dihydronaphthalen-2-yl)amino]benzoate, (Compound 19, 0.17 g, 0.45 mmol) and 5 mL of absolute ethyl alcohol was added aqueous 5 M KOH (2 mL). The resulting solution was heated in an 60° C. bath for 24 h. The solution was cooled to room temperature, diluted with water and washed once with 2:1 hexane:ethyl acetate solution, and the layers were separated. The aqueous layer was acidified with HCl 2 N to pH=0-1 and the product extracted three times with ethyl acetate. The combined organic extracts were washed with brine, dried over MgSO4, and filtered. The solvent was removed to give 0.042 g (92%) of the title compound as an off-white solid.
Workup
- temperatureThe solution was cooled to room temperature
- washwashed once with 2:1 hexane
- customethyl acetate solution, and the layers were separated
- extractionthe product extracted three times with ethyl acetate
- washThe combined organic extracts were washed with brine
- dry with materialdried over MgSO4
- filtrationfiltered
- customThe solvent was removed
Sources & evidence
- ORD record
- ord-094fad334df14da2ab8d8e6eaa0796ff
- Source dataset
- uspto-grants-2006_04
- Patent number
- US07026487B2
Reaction notes
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