Reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:7](=[O:22])[C:8]2[C:13]([C:14]=1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[CH:12][CH:11]=[C:10]([OH:21])[CH:9]=2)=[O:5])[CH3:2].C(=O)([O-])[O-].[K+].[K+].[I-].[Na+].Br[CH2:32][CH2:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>CN(C)C=O>[CH2:1]([O:3][C:4]([C:6]1[C:7](=[O:22])[C:8]2[C:13]([C:14]=1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[CH:12][CH:11]=[C:10]([O:21][CH2:32][CH2:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[CH:9]=2)=[O:5])[CH3:2]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
6-Hydroxy-1-oxo-3-phenyl-1H-indene-2-carboxylic acid ethyl ester (2 g, 6.79 mmol) prepared in Preparation Example 2, potassium carbonate (1.40 g, 10.19 mmol) and sodium iodide (0.2 g, 1.39 mmol) were dissolved in N,N-dimethyl formamide, and 1-bromo-3-phenyl propane (2.066 ml, 13.592 mmol) was added thereto, followed by stirring for 8 hrs at room temperature. The resulting mixture washed with saturated ammonium chloride and extracted with ethyl acetate. The organic layer was separated, dried over anhydrous MgSO4, and concentrated under a reduced pressure. Then, the resulting residue was purified by flash chromatography to obtain 2.37 g of the titled compound (yield: 85%) as a dark red solid.
Workup
- washThe resulting mixture washed with saturated ammonium chloride
- extractionextracted with ethyl acetate
- customThe organic layer was separated
- dry with materialdried over anhydrous MgSO4
- concentrationconcentrated under a reduced pressure
- customThen, the resulting residue was purified by flash chromatography
Sources & evidence
- ORD record
- ord-eb586fb93bd04fb89fa2dcf248ee2585
- Source dataset
- uspto-grants-2010_06
- Patent number
- US07745439B2
Linked notes
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